I'm fairly positive any and all kinks with light loads in the inertia systems have been worked out. But since I am new to Benelli, I figured I would ask. What kinds of shells are you guys using for the same configuration, 20 gauge, M2 Field, and what are you using them for? Thanks!!!!! Can't wait to get my gun, I shot Benelli's at a local range and loved them. Im very excited. Best Regards, Steve