The problem is that the Match and Stock Elites use the same frame as the standard Witness. The round-top slides had issues with 45 and 10mm, the squared did not. The Elites did not, either. I won't say you didn't have an issue, and I won't carry any water for EAA, which is a company I frankly don't care for at all. I do like Tanfoglio pistols, and while I have never owned a round-topped version, I have never personally encountered a breakage of any kind.
15 years ago, I got a 45acp compact that was not reliable. I sent it back, they fixed it, and returned it (back when shipping was cheap, $8 there, $12 back) and it never choked again. I have a Springfield P9 in 45, a Tanfoglio P45 in 45 (faintly marked Witness on the opposite side of the frame), and a Jericho with frame-safety.
I have owned 2 compacts, both in 45. I have owned 3 full-sized in 45, two Wonder Finish, one blued that I had hard chromed, 3 full-sized 9mm, all old Mossad models, and a 10mm Wonder with squared slide and widely-spaced serrations. All got shot. None were ill-affected.
EAA has always warned that non-factory work such as hard chroming voided the warranty. Coatings seem not to apply, since my compact was refinished by me with Alumahyde because of rust on the blued frame and slide - it was my woods pistol. Since Wonderfinish (as lame a name as it is) is a really great and durable surface treatment, why did you have that removed for hard chroming?
