The high pressure loading appears to be an internet myth as no one beyond that initial story that someone will inevitably link to has had problems with it. But the cases are made with shitty brass which has full length splits- something i have seen many members on this board independently replicate. Honestly, i don't shoot enough to be worth the possible frustration of bad ammo for the price savings and i just buy S&B or PPU. Romy binds up in my CZ and i don't feel like fighting it for that either.
I had heard it was the 3/10/52 (1952) ammo that was the problem. Anyway I put in new hammer springs in my two cz52's to get rid of the double strike problem and the stuff I am getting from Century, which is 1953 stuff, shoots fine with a few splits. Results may vary.