If you look at the pics I posted on facebook, There is a padeye right in front of the mast ball. I have a continuous line running from a clm cleat on one end of the main beam, to the center of the beam, through the padeye, under the track, through a small block that is attached to the travler, back up under the track and through the padeye again, and through a clam cleat on the other end of the beam. this way, the travel can be adjusted on the fly, from the trap. if you look at the pick that shows the end of the main beam, you can see the line running through the cleat and then through the shackel holding the spin block to the main beam. If I were to do it again, i might put the cleat right at the end of the main beam. I was using an existng cleat and dont want more holes in the beam, but this allows me to adjust from the trap.