My Lazy Jack control line is continuos from one side of the boom to the other. On my 310, about 2 feet aft of the gooseneck, there is a cleat on both sides of the boom and then another 12 to 18 inches further aft there is a turning block. Further aft on the bottom side of the boom is an eye strap. I will assume that you have the fixed part of the lazy jack system already attached to both sides of the mast below the spreaders. The free end (both port port and starboard) of this line/wire rope should have a small block. Take one end of the 60' line and start by tying off to the port side cleat and then take the other end of that line thru the turning block and then up thru the port side block and back down to the eye strap in the track on the bottom of the boom and then up to the starboard side block and then down to the starboard side turning block and forward to the cleat. I hope that answers your question.