Looking to buy a Javelin and not sure what size container to get. I have a crossfire 129 so my gut tells me to go with a TJNK which is made for a 135. But then there's the whole, you can go a size up and a size down from what the manufacturer lists. Is this true with javelins? Would I be okay with getting a DNKY which is fitted for a 120? Will that extra 9 square feet fit? I know NZA measures canopies different than PD does as well. Thoughts and considerations are appreciated.