Take-up and triggers.....
Years ago, gunsmiths would often reduce take-up by soldering a thin shim on the back of the trigger bow. Today, some triggers, like STI triggers, have bendable tabs at the front that can reduce the desired amount of take-up.
Most gunsmiths allow a slight bit of take up to allow the trigger to reset properly. Most shooters adjust their over travel screws in the trigger pad so the trigger can not move further to the rear the moment the trigger breaks....then loc tite the over travel screw......