I think you're being too critical Sabotloader. It looks to me as though that three shot 50 yard group is right at an inch. Each of the three shot 100 yard groups are less than three inches. What the heck is wrong with that?
I agree with you on the TC Hunter peeps. They are a pain in the butt to adjust. I like them, but the Lyman sight is far superior.
After I finished shooting the targets I posted in my Flintlock Follies thread one of my buddies challenged me to hit the 10" round steel plate we have hanging from the 150 yard target frame. I turned the dial on the Lyman sight four clicks up and took a shot. He said "I think you went just over it". So I turned it down two clicks and shot again. Hit! We went down range for a look and the lead splat was about two inches off dead center. Of course, I called it good and stopped shooting for the day (It was getting dark anyway).