RE: 7" drop from 10 to 20 yards????
You said you moved your sight up? If you moved your pins up that would make your arrows hit lower. What I would do is sight in at 20yds for your first pin if you are using a multi-pin setup and then step back to 10yds and see how high it hits then. I wouldn't think you would shoot much over 1" high at 10yds and 6-8" low (depending on speed) at 30yds. Let us know what you get.