swnebraska, I had the same problem with my vectrix. We (my buddy from the pro shop and I) found that I was not getting enough travel on the cable slide. So we crossed the cables above the slide instead of below. We then retuned the bow and I have not had a clearance issue since.
This worked for me and just thought I would share, I hope It will work for you. The muzzy is really a great rest.