I sailed again on Thursday. Backing up the trailer went much better this time. As Bill suggested, I think I was over correcting. I found that by backing up slowly and making small corrections, I was able to back up in a fairly straight line. I am sailing at Eagle Creek resoivour which is only a few miles from my house. I put up the jib sail this time out and found that I didn't have to mess with it much. My hat blew off and went in the lake and I was able to turn around and pick it up as I came by. That gave me some confidence in handling the boat.