Cz has a good trigger - Timney Triggers CZ 457 Rimfire Trigger

CZ has a good trigger already so my improvements were trigger weight and shape. I prefer a straighter trigger shoe than CZ. The timney allowed me to set a low and nice trigger pull and gave me for of the shape i feel comfortable with. CZ does make a nice stock trigger with little or no creep. So IMO switching to a timney your looking to put something else nice in there.