OK, I'm thinking seriously about adding a G30 to my stable of handguns, anybody here shooting one..?? I'd appreciate opinions, ie. Gen 3 versus Gen 4, ammo selection etc. Does the dual recoil spring on Gen 4's really make a difference recoil wise, and therefore justify the additonal cost, or is it just marketing hype...?? Any suggestions for aftermarket accessories etc..?? Thanks.