Hi Agrid, I loop the rope around the middle sheave with the end knot to the inside of the boom. Then put the other end of the rope through the cleat form the inside to the out and knot it to the outside of the boom. To rig your outhaul, you pull the loop through the clew of the sail and then hook the loop over the horn. Pull the rope through the cleat to set your outhaul tension and it will equalise around the horn. Swindy is right, keep an eye on your rope it wears through after a while, but this system is awesome it is just so quick.