Good thread, interesting to see what everyone uses. I have Bob Brister’s book and it’s very good. I’ve keep my choices as simple as possible. I shoot trap often, not ATA, just for fun and use modified. For most all Of my hunting I use IC/M. If using my O/U for sporting clays, IC/M, if my 391, mostly IC. I feel pretty good about my choices, but would Always like to learn more.