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Yes some people do that. I've jumped Tony Suits products that use a similar system. Tying the two zipper heads together is in my opinion the most secure version of securing the zippers because if you run the cord through the bottom of the zipper, instead of the top as pictured, you can tighten them up enough that there is absolutely no gap between the MLW and the zippers which is not the case with any other system I've ever seen. The main issue is this method is a bit more slow so it takes more time to take suits on and off which is why I suspect it's not more common. Personally I dont suggest the S biners method. I've tried it and found those biners are not that strong and I've broken a few. Also, since they are just metal and not elastic cord, there will always be a gap between the MLW and the zipper head which is not as ideal. The ideal solution is one in which there is never any gap between the MLW and zipper heads.

Bag strip (the mal you're talking about here) does not cause spinning canopies, it causes an explosively hard openings that can seriously injure/ or kill from the opening shock. If you had bag strip you'd for sure know it. My best guess is tension knots. Actual examples of knots in the lines is rare with tension knots. Usually once you cut away the knot disappears and so you're left with a canopy floating to the ground that has no malfunction in it. Tension knots are not typically caused by packing, they are caused by twisted or worn lines combined with bad luck. The most common place to get a tension knot is at the cascades on the brake lines which is why untwisting your brake lines is important. Highly worn and fuzzy lines tend to get tension knots more often than new, slippery line. Some would argue that careful stowing your lines will prevent tension knots, but my argument is that the only things known for sure to reduce the risk is untwisting the brake lines and keeping the lines in the best shape possible relative to their jump numbers. Other than that, it's a malfunction that's largely based on luck.

Alright so a few things. It's a bit hard to tell everything from the video, so I'm making some generalizations. - When you get linetwists the FIRST thing you do is get the risers even. Look at the slinks and make sure the left and right riser sets are even. If they are not, even them the fuck up pronto. Uneven risers are effectively equivalent to inducing a harness turn into the canopy by which the lines on top of the canopy are uneven. That effects a turn in the canopy and it will start to spiral down on you very quickly (which is what happened in your video). The more you spin under the canopy the more friction you're going to build in the lines making it harder and harder to even the risers up as you spin under the canopy. That's why it's important to get them even quickly, immediately open opening. - The type of linetwists you experienced are called body twists. They are mostly specific to wingsuiting. They occur when the canopy opens without linetwists, but you spin under the canopy. It often occurs when the risers are loaded unevenly, which in effect throws your body in a spin as soon as the canopy starts to slow you down. The cause of this is failing to fly the opening correctly, and in almost all cases it's because you dipped one shoulder low which made one riser effectively shorter than the other. To reduce the occurrence of dipping a shoulder low and causing this chain-reaction events, look at the horizon through the opening and keep your eyes on it so you have a reference. When you collapse your arm wings to reach back for the PC, fly with your shoulders to ensure you're still flying straight. Keep your hands on the BOC for a quick sec to make sure you dont start turning or dipping a shoulder low. You can practice this on a jump by flying your WS with both hands on your BOC. Try flying straight with only your shoulders. -If you do have linetwits with uneven risers and the canopy starts to spiral down you, try to twist the linetwists down onto the risers which in some cases will allow you to straighten the risers up. If that doesent work in a very short amount of time, cut main away. - You took too long to initiate EPs. Dont mess around with a canopy spiraling down. If you cant make progress on it within the first three seconds if it spinning like that, chop it immediately. In the USA, the first three fatalities of 2019 were all from what you experienced. Canopies that spiraled down on linetwits and the pilot ended up spiraling down too low. That has killed a lot of skydivers over the years. You burn through altitude very quickly when the canopy is spinning like that and you have less time than you think. - The Storm is not an ideal wingsuiting canopy as it will spiral down easily like you experienced. However, far more important is flying the openings correctly and getting the risers even if you have linetwists.

It doesn't serve a lot of purpose on standard jumps and there is some downside to getting open corners. Mainly, the right-most locking stow, the lines from the locking stow can protrude into the general area where you route the bridle. This means that in theory it is possible that as you stuff the bridle under the right flap with your finger, you could push the bridle up and through some of the lines from the right locking stow. The end result could possibly be a pilot chute in tow if the lines tangle with the bridle. If you do not have open corners, the general area where that right locking stow will be sitting will be sewn up thus isolating the lines form the bridle in that section and nearly eliminating this risk. This is why when I pack a rig with open corners I take that right locking stow and I push the lines down into the bottom of the container with my finger so that there is little risk of them interfering with the bridle. I dont see much benefit for it for CReW. It's really just a wingsuiting thing. I absolutely would not pay money for it. With most containers, open corners only means that they don't sew the bottom of the bottom flap to the side flaps. In other words, you're paying money for them to not do something. Instead, order the container normally and just pull the stitching out with a seam ripper and spend the extra money on jump tickets. Note: I dont know what ALL manufacturers do when you order the dynamic corners option, but all the manufacturers I am familiar with do what I said above. I would ask your specific manufacture to see what they do.

ZLX is just Aerodyne's marketing name for vectran.

You absolutely do not need to spend a dime for coaching to learn. You can become a skilled skydiver without spending a cent on coaching. A lot of the coaches one would pay are just skydivers who were on the loads anyway. So instead of spending $600 a day plus, just wait until they are not busy, ask them if they want to jump and offer some beers. Same end result but no money spent. You can jump with 'coaches' for free if you just hang around the DZ long enough, show some respect and put your time in. That's a main premise of the Perris LO program, more or less. That said, if you have lots of cash and limited time, coaching can shortcut your skills, but dont think that without high-dollar paid coaching there is no way to learn those skills. You can and will learn them regardless of whether you pay for coaching or not, it's just that it takes more time and effort if you dont open your wallet.

Yes you can get your A license there. There are legitimate AFF instructors who jump there and they can and have trained many students. I have jumped with one instructor there who is actually quite skilled as an AFF-I and he does a good job training his students.

Only very marginally. Like 1%. There is no noticeable difference. For example, ULPV mains out there still have a logo. The Epicene has a logo and I dont know of any canopy that packs smaller.

" How legally binding is the DZ wind limit tdm skydiving in court. " Not at all because there is none. The FAA is the only ones that write laws in the USA as it applies to skydiving and there is no FAA FAR or CFR on wind limits, not for students, not for tandems, not for licensed skydivers. The USPA has a BSR for students jumping in winds, but that does not apply to tandems. There is no USPA BSR for wind limits relating to tandems or licensed skydivers.

They do not all use the same stuff. Some backpads straight up suck. Aerodyne has some nice stuff in their upgraded backpad option. It feels similar to memory foam on a bed. It's the best backpad I've personally seen. Also keep in mind that in some rigs if you get a really right fitting main and/ or reserve, it's going affect how it fits you and you'll be able to feel the canopies through the backpad. So part of comfort comes in not overstuffing the container.

Eh, I'd argue you dont really. A more expensive jumpsuit mostly just gets you a lighter wallet. I have a few jumpsuits from some cheaper companies and they are very close in quality to any of the big name American brands. Maybe not 100%, but probably 90% which for a 50%+ discount I can live with that. Many jumpsuits are just flat-out overpriced.

What size WinX?

It's not 2", it 4" and I dont think that's going to work. That's going to be too much of a size difference. At the minimum the MLW will need to be resized, but someone that tall might also have wider shoulders which would result in a wider yoke. Yokes cannot be modified usually. But yea, ask the manufacturer but at the minimum the harness is going to need to be resized. A harness resize is typically $250 - 400 depending on how many things they need to change. A master rigger can modify a harness, although it's usually best to send it to the manufacturer.

And they allow wingsuits. So much for it not being possible...

If student setting on your AAD is 45 MPH, you could possibly consider it. If it's 29 MPH I wouldn't even consider it. Even at 1:1 you could very easily exceed 29 MPH in a sharp turn. Personally, even for actual students I think 29 MPH is too low for use in any skydiving application. I dont see the need to change it. Even for the largest wingsuits on the market, if you get knocked out you're probably going to be spinning around and falling faster than 78 MPH, although I seem to recall the wingsuit Cypress was invented because a wingsuiter's AAD did not activate. Those who I have seen knocked out, their AAD did activate, even in pro mode. I have a changeable mode AAD and I leave it at pro. Every wingsuiter I know who has a changeable AAD leaves it at pro. I've jumped with a lot of wingsuiters and I do not know one single person who has the wingsuit Cypress. If you do change it to student mode just make a rule for yourself--no turns over 180 degrees below 2,000'. Simple. What I would change is the activation height. I'd add 200-300' to the activation height. That is a good idea for just about all forms of skydiving as there have been incidents where an AAD fired but the reserve did not open in time due to one reason or another. I do wish we could enter in our own activation speed though. If so, I'd enter in about 60 MPH. I think that's a good happy medium, but such a thing does not exist unfortunately.

Having a few dozen jumps on a reserve packed as a main I can tell you they open fast. Faster than most modern canopies. So far the only canopy I've ever jumped that opens faster than a reserve is a BASE canopy. So yes, reserves will open faster than a Sabre 2. If you have a terminal reserve ride, dont expect it to be present.

You can get commercial general liability insurance. Most businesses have it. Now whether it covers what you want or not is a matter of you reading the policy to figure out. You would have to speak to an agent to figure out what additions might be needed to provide the exact coverage you're looking for. Just because there is no "parachute riggers' insurance" does not mean there is not another form of insurance that would cover you. Commercial insurance can be written to be very broad, meaning it covers a lot of things.

A Grand Caravan 208 uses around 20 gallons per load. A King Air would probably use around 25 depending on how fast they get to altitude.

It's normal to replace the loop about every 30 jumps, but that assumes you're following the USPA rule of 10% wear max. If the loop is actually breaking every 30 jumps, something is wrong. The loop should never break. If it does, that means you let it wear out far too much. I'd have a rigger take a look. Check to make sure the closing flap grommets are not damaged, cut or otherwise abraded. When you close the rig, make sure you put the pullup cord under the pin and slowly pull it. If you keep the cord on top of the pin and yank on it really fast, you're going to wear the loop out quick.

I agree with what you said. However, the WinX is just as elliptical. Both are semi-elliptical canopies. The only common WS canopies that are truly square that I know of are the Horizon, Epicene, Epicene Pro and Triathlon. I am not sure if the Kraken is, but I suspect it likely is not as I dont think NZ Aerosports would make a canopy that is super boring to fly. I've seen people chop Pilot 7s. Basically every common canopy made has been cutaway by someone at some point. I find it interesting you think the P7 is boring compared to the WinX. To me, they are both pretty similar and the P7 and WinX are the two most sporty WS canopies out there. If you think the P7 is boring you'd probably fall into a coma flying the Epicene or Horizon. Those canopies fly like a school bus with flat tires, but intentionally so as they are mostly intended to open really well and not spin you up every time you get linetwists.

The WinX absolutely can dive on you if the risers are uneven enough. As I mentioned before, all canopies can and will dive if the risers are uneven enough, just some are a lot more tolerent to it than others (e.g. reserve, PD Horizon, Epicene which are all square planforms). I have seen wingsuiters chop diving line twists on a WinX. It can happen.