Someone on the list built a wind system for an M17 and reported that it worked very well. On my M15 I just trim the boat; put a Forespar Tiller Extension on the tiller and into the box in the cockpit side, and then play with the length adjustment so that it will hold the boat on course while I disappear down into the cabin, or just sit back in the cockpit and let "Iron Mike" steer. Sheet to tiller steering also works but gets more complicated. This is a solution if you are going to be on one course for several hours and want to hold a course +/- 5 degrees (assuming the wind doesn't change in velocity) However for short breaks, the first two solutions are quicker and easier to set up. The only problem with the first two is that the boat will change course if you move about. At least on the M15 it is quite sensitive to changes in fore and aft trim. Connie M15 #400