I am one of those apparently rare people that do not have a dominant eye. I think. If I do the test of pointing a finger at an object and then alternate closing an eye, neither have my finger pointing at it. My finger just moves to either side. In fact doing that test, I will see two fingers.
Similarly with pistol shooting, with both eyes open I get double sites if looking at the target or have to focus on the sites rather than target.
Anyone have experience with this? A way to overcome or train?
The only way I have found is to first look at the sites until I have focus with one eye and and then maintain that while shifting focus to the target. That takes time though and is anything but reliable.