Correct me if I'm wrong! If you put the two beads in a snowman configuration front bead higher than the back bead the gun will shoot the same POI no matter where you move the comb! The purpose of the comb is to adjust the gun to you so that you can put the beads in the snowman configuration (thus: making the gun fit you) and not to change POI!
So if a gun shoots 60/40 (assuming that the beads are in the snowman configuration) no matter where you move that comb it will still shoot 60/40 if the beads are in a snowman configuration.
So if a gun shoots 60/40 (assuming that the beads are in the snowman configuration) no matter where you move that comb it will still shoot 60/40 if the beads are in a snowman configuration.