sorry for the late response.. work has been hell... as for using the machine.. it was recommended to me by the bow shop.. he said the best way to tune your bow it to eliminate all human error thus insuring that your bow is as tuned as it could ever be.. and in part i think hes correct.. when paper tuning i get a perfect bullet hole which i couldnt achieve by just shooting at the paper.. and my bow groups great and shoots great but i could never understand why fixed blades didnt shoot anywhere close to my f.p.. ive changed arrow weights and brands (well still in easton but went from axis to acc pro hunters) was giving the spine recommendation from eastons spine chart.. are there any other possibilities that would affect my broadhead flight... ?? i went and got a pack of slick tricks the other day and it still shoots 3 inches high and right for the 1st arrow and then the other 2 shoot 3 inches low and left..

complete setup is hoyt vulcan.. 71 lbs 29" draw rip cord rest...easton 340 acc pro hunters and blazer vanes