Gasket cut from a magazine cover? You call that a problem? I heard the story once of a guy whose CZ had the whole barrel come unbolted while he was riding. He pulled up to the rest of the riders and said the bike was "acting kinda funny." They looked down and saw the whole cylinder rattling up and down by quite a lot (didn't hear an actual number, but I got the impression it was something like 1/4 to 1/2 of an inch, sounds a bit crazy). Understandably, everyone panicked and waved wildly for him to shut 'er down. Imagine that that must've done to porting and compression, no matter how little movement there was. That was pretty much all the proof that anyone needed that CZs were tough as hell.