First, for the stock run all the way out, and your current scope position,... - You're doing something fundamentally, really wrong. No joke, no kidding, sign up for and get to an Appleseed Shoot. If you're like me, it's way too late to enlist in the Army, and learn proper shooting form. Ever hear of "Nose-To-Charging Handle?"
Whatever you're doing, if you have to have your rifle set up like that just to shoot, it's something very unorthodox.
My Jard was an adjustable, set at 2.0 lbs. It always runs great, so I never had to mess with any adjustments on it.
However, it would adjust the same way as a Geissele Hi-Speed trigger. Check out the Geissele instructions on their website, and it should help you.