So one Croatian company makes a 10mm that has problems and suddenly all 10mm's are suspect? That makes no sense.Fiber optic sights breaking off under recoil is an issue with those, it's not a 10mm specific problem.
Ah dude, did you actually read my post?
All new model 10mm pistols have (or had) 'teething' issues, some worse than others, starting with the original one, the Bren Ten.
I only mentioned two in my earlier post.
Tanfoglio's line of 10mm Witnesses had a lot of different problems: mags that didn't feed or even hold rounds properly; cracking slides and frames; poor barrel fitment issues; poor sight quality (especially the fragile adjustable rear sights), etc.
Worse, for warranty work, you had to return your Witness to EAA for service.
Try googling the fan-feedback on that.
Supposedly in the last few years, Tanfoglio is churning out 10mm pistols with better or higher quality-control ... If true, that's good news. Still wish CZ would actually offer a 10mm model.
The 3rd Gen S&W 10mms largely avoided Q.C. issues as it relates to handling full-throttle 10mm ammo. Opinions vary on what really happened between S&W and the FBI over their 1076 models. The one I had, an ex-LE gun from a City PD that was set up the same as the FBI model, ran perfectly fine on any 10mm ammo I fed it - from mild to wild
Even the Glock 20 prototypes that were first tested by the Calif Hwy Patrol, when they were considering adopting a 10mm pistol, malf-ed so badly it failed CHiP's testing before even reaching the final round-count required by their protocols.
To his credit, Gaston took the battered prototypes back and re-engineered the weaknesses out of the design and returned a much stouter first gen G20 to the market. That's all to the good as well, and certainly my Gen4 G20 and G29 are the best 10mm Glocks to date. It just took a while to get there.
So there's good reason to be generally cautious of first-year models of anything - whether automobiles or firearms.