Nice pictures. Yes I have played around with the sear engagement adjustment. Basically, the way I finally adjusted it was set just enough overtravel to allow the sear to disengage and set the trigger weight as light as I could go without it disengaging itself on bolt close. The sear engagement is set more or less the same way as the overtravel. Just enough so that it stays engaged when cocked. Your right, they don't address this at all in the instructions. One thing I regret is taking off the "sharp" edge on the nose of the sear as instructed. I may have gone a little too far. That being said, I can surely live with the 10 oz I have now. I just can't get any lower than that without having problems with random disengagement.