The bow will go to a 31" draw. The mod that you will need is a RSH 1. Any Bear dealer can get one for you. As far as the knock pinch with a draw lenght that long you are going to have it on just about any bow. It is not that big of deal if you are using a D-loop. Who ever sets the bow up for you will no how to set it up to take most of the knock pinch out.