Oh yeah!, Got sucked in back when I found a colt delta for a very reasonable (cheap) price many years ago, I'm now up to five different 10's and still looking for more.

Just built a PF45 80%, I've got a Lonewolf longslide going on it, haven't had a chance to fire it but working the slide it gets hung up at the rearmost travel, won't do it if I use my G20 slide, slight tap will release it, checked the slide with a mike and it appears to be correct, maybe some stoning of the guide blocks, life is getting in the way right now so it's gone to the back burner for a bit.

I don't have any experience with pistols only rifles but I do know that in certain situations the screw at the rear of the buffer tube can be too long and keep the buffer from going back far enough, usually when taking out the extension to use a shorter stock.
Do pistols use any screw at the rear of the buffer tube? Could that be the problem?

I read that the 40 Short&Weak was made by cutting down the 10mm for those that couldn't handle the recoil, I shoot both.