Perhaps a good method to get the angles squared may be to get out and do some jumps with a friend and do some jockeying until you know where to sit to get the shot. The fall rate may not quite be the same but there is less risk than trying to learn with a TM pair. And i definately agree with getting some wings, however do some solo jumps so you know what is going to happen with changes in body inputs and when it comes time to deploy you main. If your interested look at http://stuntquest.8k.com and ask a few questions there as well.
good hunting
