I've been shooting Ansley H. Fox doubles with slim forearms for 46 seasons and have never felt the least bit bothered by putting my left hand on the barrels, including 1 5/8 ounce 12-gauge 3-inch shells in my HE-Grade Super-Fox. The only double I ever ran 100 straight at skeet with had a beavertail and a single selective trigger, but I've run 99s with a slim forearm and double triggers.