Mikebiz,try this: Tip your head and bow to the right (CANT) try various angles of tipping. I am the same as you right handed, left eye Dom.
By experimenting with different clock positions with your anchor solid and head tipping with the upper tip of the bow you are changing how much your left eye lines up over the arrow shaft. The most lined up vertically you could get would be bow flat at 90 degrees, then your left eye would be in the vertical plane( obviously you won't lay your bow flat) but just for demonstration purposes. I find that with my strong dominant eye about 40 degrees from vertical , or mid way between 2 and 3 on the clock position helps really remove my left shots comming from my split vision being dominated by my left eye.
Long explanation, but just try keeping your form good, anchor solid and tipping the top of the bow, along with your head and some upper body to maintain alignment ( I lean over at the waist just a bit, like leaning into it, ) and see what you get ,
Just trying to help. It has really helped my on my longer 35-45 yard shots and now I just look at be target ensure I'm canted properly and leaning a bit into it and let er go. Groups are nice and tight. When I find myself not doing this and shoot more straight up and down with the bow and head tip at 1 o'clock, I will get shots migrating left.