I also got the HBI trigger and prefer it to the stock P10-C trigger, mostly because I was getting trigger bite from the factory trigger. I looked at the original trigger/dingus and saw that one was straight and one was curved, leaving a ridge pressing into the trigger finger while the gun fires. I carefully smoothed the dingus down to match the profile of the trigger when it was being pressed back, that helped a bunch but there was still some irritation when shooting the pistol. The HBI Theta trigger has a straight and flat surface that is comfortable for me to use.
All that being said, the CZ factory trigger shouldn't have a hitch to it and you shouldn't have to buy a replacement trigger for it. There's a good argument for leaving your carry weapon in full factory condition (working as designed) for maximum reliability, so give some thought before making any changes, and the trigger is a big one.