Len might be right. There are standard rockers and tall rockers. You may have the tall rockers in right now. Putting regular size rockers in will drop you about 3#'s. Have your dealer call Bowtech and get some standard rockers in. They send them free of charge (usually).
If your bow was originally a heavy 60#er than there is a good chance it had tall rockers under its limbs.
I have had to play with different rockers before after switching limbs. Turned out the bows new 70# limbs maxed at 68. After throwing in the tall rockers it was a touch over 70#'s.