I talked with the gunsmith at CZ about this a while back, and he said that there has not been a problem, as far as he knew, with either the slide stop or the slide.
He noted, however, IF there was a problem with the slide stop, it was probably a function of ammo that was TOO HOT, and a slightly stronger recoil spring would probabl.y solve the problem.
I've put 1000+ through my CZ-75B and 1500+ through my CZ-85 Combat (both of newer design with minor enhancements and some degradations), and no sign of problems, yet.
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[This message has been edited by Walt Sherrill (edited August 24, 2000).]