The CZ factory trigger is usually a reliable mechanism. Many (but not all)after market triggers are made with target shooting in mind. If you do not like the set trigger feature, don't use it. I sprayed mine down with Break Free CLP, and found it loosened up the mechanism to a point where a 3.5 pound trigger pull was there without need of the set trigger. Remington Oil (Rem Oil) works wonders on any trigger mechanism.

I added two cross bolts and had the action and the front bedding block (under the rear sight) glass bedded. I also polished my feed ramp to a mirror finish. This really helped feeding.