Thanks for the replies.
I now have much more in additional parts for my CZ52 than what I paid for it in 1991. The Novak sights were nearly the same cost, plus Marschall grips, all the extended stuff, etc. But the gun still looks good and shoots great.
I always tell the story about the marine sniper who was shooting a Rugger 22 at 25 yards. Let him shoot the CZ52 with good boxer factory ammo. He shot the magazine inside a quarter at 25 yards. Like dammm!!!! He proceeded to tell me about the notchyness and the trigger creep, how it could be better. He could hold a pistol out with one arm, and the tip would not move a 1/1000 inch in ten minutes.