I.C. in the early part of the season(first three weeks). Mod. in the later part of the season. I've been experimenting with a Pattermaster and have not likeed it so far. A guy I work/hunt with bought it off Ebay for $50.00. He wanted it for his Benelli SBE but did'nt like it. I'm using it a Franchi 612. My best buddy is next up. He'll try it in his Beretta ES-100/pintail. If he dose'nt like it, the other guy is going to be stuck with a $50.00 paper weight.