>>3179831had issues with my sp01. nearly CONSTANT failure to feeds. like seriously once or twice a magazine.
polished my feedramp. put in heavier magazine springs, lighter recoil spring...couldn't fix it. eventually shot the firing pin out of the back of it and into my chest. sent it in and they worked on it an 'fixed' it. worked well but I just sold it.
love the cz's, but that scared me off from them.