Def read the manual AND download the draw stop setting chart before messing around with the draw length. While the new Bowtechs look to have a "backup" cable stop machined into the cam (I'd contact the BT guys here or BT proper to make sure), word is binaries can lock up at full draw if over-rotated. The draw stop should be placed at the proper position for your draw length (per the chart) and then you can move it back and forth slightly (it slides back and forth on the allen screw) to adjust your valley/letoff.