I just got a Hoyt Ultratec with the command cams+ and it was'nt near as accurate as my ultratec target bow with a single cam. My string was also within the timing marks. I tied a short piece of rope from my rafters in the garage with a small hook on the end. Then put my bow string on the hook and pulled down with both hands on the riser. I was able to see exactly how the cams rolled over. One of the cable stops was hitting about 3/16 of a inch sooner than the other. I put a couple of twist in one of the buss cables to bring the cams over at the same time and now the bow seems to be shooting as good as I am capable of shooting it. What a difference! If you don't have a bow press you'll need to go to a pro shop. Good luck Rick