Thanks Fuzzy. Before I removed the upper trigger he screw, I tried to measure it 5 times with a digital caliper. My readings went from 0.049 to 0.064 inches with the median being 0.055. When I reversed the screw, I tried to set it at 0.055, but the trigger wouldn't reset when i slowly released the trigger. The bottom (closed end) of the hex screw is raised in the middle and it is very difficult to measure in the thousandth. Trial and error seemed to work and there is only the slightest bit of take-up in DA mode. I'm satisfied and believe (hope) this ensures reliable reset.
Tok, I think I did learn a lot by having to, or choosing to, do it several times. I remember when I first disassembled my Colt Gold Cup around 1980, it took me 2 days to get that darn little spring in the sear to line up. Of course, there was no YouTube, CGW tutorials, and of course, no CZ Forum. Thanks to all and I look forward to my next project of a new bushing and sight(s).
