I shoot a TC Omega muzzle loader,and if anyone has fired one with a heavy bullet and 100grs. or more of 777, you know how hard they kick. I bought one of the Simms prefitted pads,yes they don't fit perfectly, and it made a VERY noticable difference in the felt kick. When you go out to shoot,50 to 100 shots,thay make a big difference in my shooting.