Outhaul for Loose Foot Main
Sure. In the track on the top of the boom is a car that can move fore and aft. Attached to this car is a wire that passes over a block at the outboard end of the mast. The outhaul passes thru the boom to the mast where it can be adjusted. You may be able to emulate such a setup by finding an outhaul car that will fit you boom track and mounting a turning block on one side of the boom along with a cleat.