I have a CZ Shadow 2 that I converted to SA by taking out the disconector and adding the flat trigger from Cajun. That's the only parts I swapped. I also polished the trigger bar, the hammer and hammer strut. I did a general polish on the inside where the trigger bar sits.
The trigger has been awesome! About 2lbs with short reset and crisp. Very accurate.
I recently has some trouble with the trigger but fixed by adjusting the pre travel.
Hope that helps!