same with me...but I did change. using BE tip of masking taope over the left eye, while shooting, made the right eye muscles take over the job of focusing.
Try transparent tape over your left eye. Use it during dry fire, practice and go to a few matches. Before you know it, you will be using your right eye to focus.
It only takes a few weeks.
Thanks Kimbercp, I will give it a try, but it's hard to teach us old dogs new tricks..... : )