tanoose,
For my part, the issue isn't recoil, but the poor utility of the butt plate as installed by Ruger. In essence, with a different recoil pad, what you describe is what the fellow did. I liked it because it did not slip and the stock butt was sealed agianst the entry of moisture, something not done in the Ruger factory installation. I will keep mine as Ruger issued, except that I removed the butt plate and sealed the butt of the stock so there will be no more moisture creeping in and swelling the stock behind the butt plate during a day's hunt in the rain. A decelerator or shotgun recoil pad will reduce any kick to nothing, as IMO the firearm has no kick to start with.