Yeah I haven't been strapping them tight when I put them in the kit bag.  I'll give it a try, thanks.
@Watsontotty: I have also contemplated the two/three strap pads.  I sometimes find that the three strap type to be a little uncomfortable at the calf area.  I've never worn top of the line three strap type, perhaps they are more comfortable.  I like these pads quite a bit, they feel awesome during matches, never had to readjust during play.  This is my first foray into molded pads, and I like them so far.  I really wanted a pair of morrantz but they were a bit pricey for me but overall happy with the GM's.