Gary we have a double "V" system, which can be pulled to the mast and clipped there when not in use, thus having them out of the way when raising the sail (making it easier) and also negating the need for a specialized sail cover. It linage consists of two length of line with a loop on the end both attached below our lower spreader times two (one on each side of the mast). One length is longer than the other The first line with the loop when pulled straight and down the boom reaches almost 1/2 the way down the boom and is 2 ft above it. The second length (longer) reaches 3/4 way down the boom and 2 ft above it when held tight. 3/8 inch shock cord with plastic attachment hooks at either end of it is attached as follows. One hook on the mast where the boom joins it.....shock cord is led through the first loop....the it i run down to the boom at the 1/2 mark around a small clip hook fastened on the boom and then led through the second looped line and then clipped to the end of ther boom with the other platic hook on the end of the shock cord. It looks like two triangles when in place and the sail never spills out. For removal all you do is pull the hooked end on the end of the boom up to the mast and clip it there out iof the way. Every 3 yeras or so the shock cord needs to be replaced at a minimal cost. Most Lazy jack systems are actually about 300 but you can make this yourself for about 50.