I fired a mk II that had had a lot of different things done to it, the trigger pull was so lite it was actually scary, Owner said it was fully customized, not sure what he meant but barrel was ported, grips were custom made, wierd sights installed, and that super lite trigger pull. I had to concentrate so hard on not accidentally pulling the trigger that it was not a joy to shoot. I have never measured the trigger pull on mine, I clean it regularly and have it completely gone through by a gunsmith every other year. I am completely satisfied know that i will probably never match the potential of the gun. I just enjoy shooting it.