Ok I did the same thing but I was only at 10 feet up on my buddies platform. I am shooting a bowtech 101st at 70 lbs with aQAD drop away rest and a vital bow gear star bright singal pin sight and a Fletcher peep sight and 350 maxima wieght forward arrows. Now I didn't go for a singal dot the size of my arrow I had a two inchcircle. I shot three arrows and by aiming about 2 inchs low I put 1 arrow in the circle 1 arrow about 2 inchs high and 1 arrow about 1 inch left but even with the center and I was shooting at 6 feet measured from where my feet were on the platform. So I don't know why I am getting these results but I can say I shot another robin hood right after doing this at 35 yards and I only use 1 pin for 0-35 yards and then I have a 40 yard pin and 50 and they are all touching.. Oh I forgot to tell you I chronoed by bow on Thursday and it was shooting 300 on the money. Walt