I plan to install one of those pads on one of my #1's. The only problem is that Pachmayr only offers the red pad in medium size. The metal reinforcement in a medium Decelerator is 1.45" wide. A #1 butt stock is only about 1.60 wide at the widest point. Even if it is perfectly centered and you do not take any wood off the sides of the butt stock, you will be very close to the metal reinforcement, and may cut through to the metal. Ask me how I know? OK, I'll tell you anyway. I was installing a medium Decelerator on a Remington 870 butt stock and I ground through to the metal on the side. I ruined a $35 pad. I ordered a size small and had no such problem. I sure wish Pachmayr offered a red in size small. I like the Silvers pads but from everything I have heard about them, they are mostly for looks and don't offer anywhere near the lack of felt recoil like the Pachmayr Decelerators.