bigcountry is right about the arrows.

Both arrows are overspined at 65 lbs. The 6075's are extremely overspined even with a 100 gr tip. With the 4560's if you go up to 68 lbs you are in the ball park of a good spine with 100 or 125 gr tips. A little stiff with the 100 and a little weak with the 125. At 70 lbs the 4560 w/ 100 grain is pretty good. Try going to 68 w/ the 4560's and see what happens.

The big issue with me though is the rest position. If you are the whole way to the end of a WB with an Allegiance something is off. I had a WB on mine and still had 1/4" on the right side to the end of the horizontal adjustment post.Are you still centered in the valley on the riser?

I know some of the guys here are starting to think I sound like a broken record on this. However, a different approach is to try is French Tuningif you have access to a range or field to shoot at 50 to 55 yds. Walk back method if you have a range out to 40 yds. Sometime paper tuning can drive a person nuts trying to track down a problem. However, I've found French Tuninggives youfaster results and after tuning shot thru paper with a perfect bullet. Site in a pin to be dead on at 4 yds. Then go back to 50 to 53 yds. You need to find where the arrow crosses the axis at the further distance. If your group hits left move your rest right. If it hits right. move the rest left. You need a low wind/ no wind day for this. I wouldn't mess with the vertical adjustment if your vertical tear is gone.

If you're interested in the literature for this method email me with an email address I can send an attachment to.