Since I don't know the proper terms It'll probably be tough for you to understand what I'm about to say but I'll try anyway. Out on the lake yesterday I had the sail full of wind on my port side (wind was blowing biggly from starboard) and the boat wouldn't go anywhere, I was completely stopped in the water. I moved the tiller extension back and forth, not rapidly like a jack hammer but just trying to see where I could put it so I could turn out of my stagnation, while sheeting in and out. This happened several times. I still don't know what I did to get out of it but a couple times I can out of it so violently I lost hold of the mainsheet and tiller. How I didn't capsize is a mystery to me. A side note: I was out on the lake of just about 2 hours. It was by far the most strenuous day sailing to date. I sure as #@$$& will be glad when all this makes sense.