I have been struggling for a while now with shooting with two eyes open. I have an astigmatism in my left, non-dominant eye that has always made focusing on the front sight difficult with two eyes open. The other day I started working on this again, and instead of looking at the front sight, I just look at the target and interrupted my focal plane with the sights. This resulting in less defined sight picture, but still a sight picture which allowed me to get hits on an A-zone all the way back to 25 yards. It was a good enough sight picture to hit the A-zone in the head of a USPSA metric target at 7 yards as well, and a 3x5 card at 7 yards.
The issue that I'm running into with this is that because I'm not focusing on the front sight, I lose it in transitions, much like shooting a gun with a slide mounted RDS. I know that a couple of guys have messed around with focal plane stuff, any thoughts on how to track the front sight in this situation?
One of the interesting side effects of shooting with both eyes open is that despite running a much higher round count that I normally do when shooting a .45, I felt much less fatigue at the end of the session. Normally the act of closing and opening one eye repeatedly during a practice session will lead to a minor headache, I had none of that the last two times.