Thank you Mr. Baker. Excellent suggestion. I followed your advice and put the boat on my work bench and toggled the winch servo lever on the transmitter and the sail servo became more and more sluggish, even thought the receiver battery indicator was showing over 5 volts. After a few minutes I decided that there was a problem with the sail servo and I have ordered a replacement. I appreciate you taking the time to think through this with me. Not sure where you reside, but if you are ever in Charleston, SC we have a great sailing venue at the James Island Park and would love to have you join. We re sailing a mixed fleet of DF95s and Soling 1 meters on Wednesdays and will start a points day in August for the 95s the second Sunday of each month.