I put a Timney on my 452, and am very impressed with it. Carving out the stock to accomidate it was kind of a pain, but not bad with a dremel. The big thing is how consistent it is. I have it dialed in a 2.5 pounds, and that's what it pulls on the scale EVERY time. Another complaint some have about the timney is the sharp trigger edges. The triger is indeed not rounded at all, and I don't care for it either, but 5 minutes with the grinding wheel on the dremel rounded it down, then I polished it up with 600 grit paper and it's spectacular. But great pull, no creep at all.