The rumor is that some slides crack.
That word says it all. The Tanfoglio's are built like tanks. I have been hammering my compact 10mm with 180 and 200 grain loads that push harder than BB or DT for four years no with no ill effects other than accelerated weakening of the recoil spring.
The problems with the 10mm compacts are feeding issues with full power ammo. There is less mass to soak up the recoil, so they cycle
really fast. No extra power recoil springs are available (double spring system), but I was able to cure mine by doing the following:
1)polish the feed ramp
2) bevel and polish the bottom of the extractor
3) swap the stock mag springs for full length mag springs (I used the ones from 10 rd. Beretta 92 mags that will never see the light of day).
The added magazine spring pressure pushes the cartridges up harder and faster so that the slide doesn't catch them mid-feed, while beveling and polishing the bottom of the extractor allows the rims to slip under it that much easier (hence faster). Polishing the feed ramp is just standard practice for me when feeding issues are encountered.
The Tanfoglios are a great buy, but I would venture to call them a tinkerers pistol. No major issues, but a little fluff 'n' buff by the home gunsmith may be in order.