I found that despite being cross dominant, with a red dot I don't have any focusing issues. In fact, I do not shoot a dot gun as cross-dominant. I am right handed and I can index with my right eye while using my open gun. This is not what I expected, but this is what my mind feels comfortable with. What I have also found is that I can also shoot a dot gun as cross dominant, too. This has come in handy for weak handed shooting. I don't know yet if it is a competitive advantage, but it can't hurt.” I works that way for me too. Sent from my iPhone using Tapatalk Pro