Went to the range yesterday with my son. Pistol functioned perfectly, 200+ rounds and not a single issue. It was quite cold, and quite windy (40F, 10-15mph) but my better groups were 2-3" at 10yds. Son also shot well (6" groups), although he is a bit behind me in practice.
After field stripping, cleaning and relubing, I swapped in the 11.5# CGW hammer/main spring. Dropped my DA pull another lb. SA was unaffected. SO it is sitting at about 5.5lbs (5lbs. 9oz) DA, 2.5lbs (2lbs. 6oz) SA. I don't think I want any lighter, so I am done tweaking and extremely happy with the modifications and results.
What a great platform the CZs are (especially after the CZC treatment)...Now I just need to decide on what CZ is next.