stupid, double posting computer![:@]

I would also check the fletching clearance. I had to get a Sims cable slide to pull my cables over another 1/8" or so to clear the 4" fletches I have to use for bowhunter class in 3D, before that I was getting contact on the cables unless I turned it so that cock fletch was slightly towards the riser, but then one was facing more down and got contact on the rest. No problems since I got the cable slide, but I had to put lipstick on the fletches edges to find this out. Now with the new cable slide, I shoot cock fletch up with no issues. You may also want to check timing on the rest as well, it should completely drop into the bracket before the arrow is halfway over the rest, if it is dropping to late it will raise hell with fletching contact.

My first though was clearence as well but not in the typical sense. When dose the arm on the DZ start to drop? Dose it just top out at full draw or dose it top out quickly and stay up through most of the power stroke?

I think (without actually seeing the bow or you shooting) that the arm may be coming up too soon and dropping to late. Just a thought but worth a look.