Could not agree more. The differences are bolt handle - some bent back/some with hole filled in, trigger, safety (I still like the ZKK 2-position safety more), bolt shroud and I'm not sure if the firing pin/ cocking piece/firing pin spring retaining mechanisms are the same or not (I no longer have a ZKK to verify), front hood and I guess the trigger guard/bottom metal. But the receiver, followers and bolt body (basically the important bits) are identical as far as I know. The little differences listed above would not make one better than the other. If anything, the smoother metal finish, the trigger, and for US shooters the safety might make the CZ better. Put a CZ 550 with the peep sight option in the old ZKK stock (like the one pictured in this thread) and we're cooking with oil. That said, I myself do prefer ZKKs, just from nostalgia I guess, and more than ZZKs I prefer the true Mauser style simplicity of the older models like ZG47, VZ24, VZ33 and the 21/22 models in the long actions. But in the magnum, the ZKK 602 and CZ 550 are hard to beat (unless you get magnum Mauser).