There is another factor to consider when thinking about FPS limits: Percieved hits. I've used AEGs shooting as low as 160 FPS (Broken nozzle MP5k) and watched the BBs bounce off the target's vest without them noticing, only to have them turn around and "light me up". Some would call that cheating, I chalked it up to wussy hits not being noticeable. I for one would be hard pressed to notice a 300 FPS (closer to 200 by the time it gets to me) hit on my vest or legs. This leads to accusations of cheating, arguments and bad feelings all around. I'd rather get a bruise and KNOW I've been hit than have someone get in my face cos I didn't call hits I didn't feel.
Offense cannot be given, only taken.
APOCALYPSE - TEAM HELLFISH