With so many gas rifles/smg and even some pistols it's really become a PITA to run chrony stations at large games. You almost need 2-3 lines for 100+ person games. One for regular AEGs...and in most cases just giving them some 0.20's to put in a mag works fine. Another for gas guns...and then you're best off doing a J coversion. And another to pitch in wherever things are slowing down.
We need MadMax @ AI to produce a J measuring pad that we can just have each player shoot it to get a "real" measurement. Put it at a set distance away...shoot it with a reference gun (for convenience it'd be mine..LOL) and then have a red or green light go off to signify a go/no go limit.
Maybe DonP isn't busy...