I have been using one for a few months now and absolutely love it!! I was using a Whisker Biscuit previously, and really liked that. But after shooting the QAD, my groups were a lot better and no more fletching damage. Well, almost no fletching damage. Now my groups are so tight that I'm stacking arrows on top of eachother. I shoot with 4" vanes with no problem. I was considering trying Blazer vanes, but have heard of a lot of contact issues with the topcontainment arm. Does anyone have this problem with the Blazers?