That's what I had to do for my sniper plate, too. About every other troop the foam I put in there falls off, and I keep re-adding new.
Course, I'm using the air conditioning insulation foam that has an adhesive side, so it's rally WEAK. Oh, and not that I'm looking
at your hiney, but you might look into tighter pants.... Not that I would know, but I've heard that some girls like guys with tight pants,
for troops. I better just stop right there.
This is what I'm talking about.:
http://www.whitearmor.net/forum/index.php?showtopic=21239&hl=&fromsearch=1
TTYL and have an AWESOME 1st troop, and GET PICS!!!! Jenny