The issue in my experience is that the black base of the Galazan pad is prone to cracking, not only when you mount it to a curved buttstock but when you are screwing the pad down onto the buttstock. The quality of the rubber is not up to par either in my opinion. I had a Galazan repro pad mounted on a Lefever and the rubber was actually way too soft very unlike a real Silvers pad, and it did not have the proper orange color.
Real Silvers pads are quite mountable on a curved buttstock, they just need to be heated properly via boiling or heat gun and they will bend with the curve of a buttstock nicely and I have yet to see one break or crack at the base, I'm having one mounted right now.
