Been playing modified stock class last few times out (13ci tank, 10 round feed tube), been getting through 350ish a day at walk ons, I tell you its the future, or maybe the past, definitely the present for me though. Nothing quite like not taking a shot because you know you'll be massively outgunned if you miss.
Recently got myself a hammer 7 pump with a 20rd feed. take 10 x 10rd tubes on per game and I'm barely breaking through a second bag at the end of the day. Makes a massive change to the box and a bit i used with my Etek 4... @Canon Fodder is right, it's the future, or something