i dialed in at 20 yards dead on. moved out to 60 set hha on 22 moved to 23 dead on. shot 12 shots on the mark. came back 1 hour later and i did not move anything i had to move dial to 26 to hit the mark it was about 6 inches low. what could cause this inaccuracy. is something causing the bow to loose power or what could it be. thanks for any input. this forum is great info. you dudes have done the homework.