I am just amused that I might offer any advice. The spinnaker was the first sail Mosley taught me. Here is the extent of my knowledge. LOL.

You should trim the sail so that the luff is on the verge of collapsing. Let it curl inward occasionally and then sheet in a little. I tried to let it curl every time I took a breath. I imagined the sail was breathing with me. It seemed to work well. If you are working the spinnaker you can't take your eyes off of it for a moment to look around. Because you are keeping it on that edge of collapse, as soon as you look away it will fold. It is really fun to try to keep it there as the wind shifts. I think it is very challenging.

If you are reaching high you should ease the tack line to let the spinnaker rotate.

See there David, I was listening. <img src="http://www.catsailor.com/forums/images/graemlins/wink.gif" alt="" />