Was just doing dry fire draws to target and made an interesting discovery. I'm sure I'm not the first to discover this but it is making my transition from iron to optics, while anchored to index, a lot easier.
The main reason for the transition is that as I am getting older and my eyes are failing, iron sights are just harder to focus on. But an issue I have always had, as I do shoot with both eyes open, is the double image of the iron sight was sometimes distracting and it would take me a split second to acquire the correct set. What I am finding with the optics is that, while the frame is still a double image in my vision, the dot only appears to my right eye.
With a slight adjustment to my grip making the optic the correct height, I am learning to ignore the double image of the frame and focus solely on the dot. I'm finding, with more practice, the dot is all I really see and since there is only the one in my right eye, I get it on target a lot faster. Also transitions are faster as I am not trying to determine which image is the correct one. One dot. One target. Easy index.