Re: CZ trigger
There is an adjustable sear made for the CZ452 that really helps with the awful creep in these triggers. The part is however a bit of a myth. I know they exist, I know people who have them, but I have had one on backorder for 2 months and wonder if it will ever be a part of my rifle.
The pull weight can be adjusted by cutting back the trigger spring just a little. That is what was done to mine but still the creep is awful.