This is a fully tapered opti outhaul built using Marlow Excel Control. By tapering the polyester strands away from the cover of the line we are left with a Technora line with very high strength and a much smaller diameter. A brummel spliced loop at the end of the line provides a stronger connection to the outboard end of the boom than the typical stopper knots used in other systems. This is the smoothest running and best looking outhaul you will ever use!!!