Additionally, the big win with the Wilson bar is that it is harder metal
Yep - I know the OEM one flexes as well. On my Brig-Tac, it flexes and causes a drag on the early production grips. On my 90-Two w/ the grip sleeve, it sounds plasticky because that's what its rubbing on. Certainly bowing out in the middle under load doesn't improve trigger feel whatsoever. I just wish the Wilson part wasn't $80 as I have too many 92's to buy for. Guess I should try it on one first but I'm afraid I'll like it.