You are by no means alone with this problem, Not only making them trigger bars taller , but the trigger pivot points need to be spaced 1/8" farther apart. I have looked at this alot to see what the problem is. Even raising the height of the bars, weren't engaging the sear bar right, actually barely catching the sear. Take a good look at it, If they were farther apart, the trip arms would be longer, enabling them a longer reach. ...Geo.