I had a 591 Scalpel built two years ago. When it was built there wasn't a two stage trigger available through Surgeon. I went with the single stage Timney Calvin Elite sigle stage with the intention on swapping it out later. I want a two stage trigger due to the fact that this is a work rifle and it must have a mininium pull 3.5# pull weight. A two stage helps with this weight and also I feel it's better since I would feel the trigger moving if I inadvertently started applying pressure to the trigger before it was go time. When I first got the rifle I tried a CG two stage in it but the cocking piece and sear were too close. When the trigger was depressed the cocking piece would slide to a stop on the sear before contacting the primer. When Timney released the two stage trigger I bought it thinking it would work since I already had a Timney in it. However it did not work and had the same problem the CG did. The two stage has a different sear design than the single stage. I saw where Surgeon just had Timney make the two stage trigger that will work with their actions. I called them and was told they didn't sell the triggers to the public. After I explained to them I purchased a built rifle from them they stated they would get back with me. I have yet to hear from them. I had been told by a prs shooter at a local shop that someone was making a cocking piece that would fit a Surgeon shroud that would allow it to work with other triggers, but I cannot remember the name of the company that was working on this. Does anyone on here know about this or have any advise on getting a two stage trigger to work in my 591 action. I'm getting no where with Surgeon sales or customer service.