Here's a little draw length trouble shooting guide I picked up on the PSE forum. I think it will answer your question:
"Draw length troubleshooting:
A)If your draw length is too long your sight should float and never really stop. On too long of a draw length your misses will not be as far from the center but they will tend to be one side to the other without any consistancy.

B)If your draw length is too short your sight
may momentarily stop but when it moves it is herky/jerky. On a too short draw length your misses will tend to be further from the center.

C)If your draw length is correct (in theory) your sight will stop momentarily and the movement will be slower and reduced."
Hope this helps. BE safe.
Shoot Straight
Derbytown