If you're referring to the crescent butt plate then I gotta point out that few people know/remember how to properly use one. It doesn't go into the hollow of your shoulder like we all do with "modern" butts, rather it was meant to sort of hook into the extreme upper arm next to the shoulder joint. At least that's how a couple really old guys explained it to me 50 years ago or so, and it makes sense to me. I have a couple rifles with crescent butt plates and that's how I use them, and don't find them to be slow to "shoulder" at all. (Inadvertently sticking a sharp kicker like a .30-30 carbine with crescent butt plate into your shoulder wrong can be a wake up call!)
that is why I asked, see you have a solution to it, I will try that next time I am looking at one, thank you!!!