Looking at two Model 21s and can't have both. Primary purpose would be grouse hunting and some upland. One is the standard Skeet model with WS-1 & WS-2 chokes and beavertail forend. The other is choked IC & WS-2 and has a splinter forend. I'm thinking the more open chokes are better for my purpose, but if someone wants to argue in favor of IC & M, I'm listening. Opinions?