I bought the Vital Bow Gear Camelback pendulum about a month ago, and i still can't get it working right. It sighted it in on the ground at 20 yards, and it is working fine from 5 to 20 yards,but anything after 20 yards the arrow starts hitting low, and by the time it reaches 30 yards, it is consistently 8-10 inches low. I know the majority of the people don't use pendulum sights, but of the few that do, i have never heard them complain about the arrow dropping 10 inches between 20 and 30 yards. I'mpulling back 55# on my PSE Bruin along with a 27 inch draw and it's shooting about 230 fps. Thanks for the help