The original block pins to theb car. Directly to the swivel pin if possible. The mainsheet runs out of the cleat forward. You can then turn the sheet aft and run into the swivel cleat, dead eye then out to the car and between the black rollers from fore to aft. Finish by passing through the stainless eye behind the track and tie a small knot in the end of the line.

When you pull the line from the swivel cleat, you pull the car towards center. Pull all the way tight to center the car for upwind sailing. Ease the line for reaching and downwind. Ease the traveler line out if the wind is strong and you keep stuffing the bows.