I posted on the thread "Anyone regret buying a 27", and I rethought my issue. I posted that the grip texture on the Gen 4 27 was causing a bruise on my ring finger when firing. Well, after looking more closely at the bruise, it occurred to me that it could be the mag to frame gap closing a bit from recoil that is causing the bruise. I never had a problem with the Gen 3 27 doing this. Could it be the difference in frame causing this? I have a GAP floor plate for my 26 and noticed the gap is closer from mag to frame. I'll put a GAP floor plate on the 27 mag to see if this cures my problem. I've not read anyone complaining about this before.