That's actually one of my favorite things about the gear, is it's always changing and evolving to fit my changing needs and play styles.
As far as leg/thigh rigs go, I actually use a left handed drop leg holster for my sidearm, as it cuts down considerably the amount of weight on my vest, and it's hard to find a left handed crossdraw vest anyways. The dropleg does sway a bit from side to side when I sprint, but I've gotten used to it. Having that on 2 legs however... Probably won't be so comfortable for me, so I guess I'll just stick with a belt mounted drop pouch or something of the sort.
Anyways thanks for the input guys. Guess I'll have a lot of experimenting to do with my new M4 mags and L96 sniper rifle at Fort Adobe next weekend!