Washington Hunter nailed it. Reading his post reminded me how I did it. Shoot 3 fletched arrows from 10 yards, then 3 bare shafts from 10 yards.
When I did that, I too was hitting to theleft. I was using a 75 grain point, changed to 100 and whammo......took care of it. You using a 125 grain point already, I wouldn't think you would need to go heavier. Maybe increase the poundage by 1 or 2 and see if that doesn't take care of it.
Shoot closer to start though....that far back will only make the problem seem worse.