I picked up a 3 pack in summer of 2015 to shoot out of my compound set up. I thought my bow (at the time was tuned well). I shot rage mechanicals and slick trick fixed through them just as good as field tips. Paper tuned, etc.... everything was perfect.
The QAD's consistently shot 3-4" low on the target. Didnt matter for me if it was 10 yds or 90..... always low. I gave them away to a buddy that had great luck with them out of his hoyt and had them shooting well, but for whatever reason my bow/arrow set up didn't like them. Had nothing but great luck with slick tricks before and since.
I know this is an old thread but I tried some Exodus heads and had similar results. At 40 yards they were hitting about 5" low and 2" right of the bullseye. It was so consistent that I could hit the bull by aiming high and left. This was the same out of both of my bows. Hoyt Powermax and a Pro Defiant. They both shoot fieldtips and Muzzy MX3 in the bull. Kudupoints were hitting close but just and inch or so low.