I just took mine off this week and shot the best match I’ve had since I originally installed it. I also shot the best classifier I’ve had since installing it.
I took off from work a little early on Tuesday and went to the range for some actual live fire practice. My goal was to work on grip to see if I could find the correct grip for the gun that I’m shooting. I was judging based on where the sights came back to after firing a shot. I noticed that the dot would move up and to the right and then settle back to my point of aim. The dot movement was very erratic or should I say “squiggly “ in its movement up and right. I then moved to double taps, seeing the sights once and squeezing the trigger twice. Groups were still horrible and were consistently center of A zone and 2nd shot would be to the right. I decided to remove all pressure from the thumb rest and track the sights. With the thumb not even touching the rest the sight track was straight up and down and not erratic. My hypothesis is that since I was only firing one shot at first, I was forcing the gun to return to original poa. I still need some work on my grip but the sight seems to track back to poa with little to no effort now. Apparently I was torquing the gun with my left hand. I’m leaving it off.