i have a mark ll slabside and was wondering if anyone out there can advise me on how to adjust the trigger overtravel feature, also was considering getting a volquartson trigger and hace the same adjustment question on the pretravel screw. i have already installed the volquartson grips,compensator,extended slide release,scope rail and ultradot red dot. these have all added to my enjoyment of shooting this pistol, especially the grips