I'm not a fan of Limbsaver anymore. They really absorb recoil well, but the rubber breaks down into a mush. I have a Remington 7615 pump that the pad disintegrated off of. My Baikal has one. It's trying to melt away. Out of desperation I started wiping it down with Ballistol. Seems to be helping. Good luck with yours. Do a search on Limbsaver and you'll find a few similar stories.
Nice shotgun. I love coachguns. They're so short to begin with, you don't need to make a sawed off. My Baikal has working hammers and changeable chokes. Good bumming in the woods shotgun. Hammers are rebounding, so drop safe.