First thing I would do is group tune that bow. Usually, when you're hitting to one side or the other at distances greater than your initial shoot in distance it mean that the rest needs to move one way or the other to get the groups in line. I don't even begin to make sight adjustments until I've group tuned out to about 45 yards or so. Then I'll make the proper left/right adjustment to keep me close. I'll then back out to 60 yards or so and group tune there. Only then will I make final adjustments on the sight itself.

Try it, I bet you'll find that is your problem.