Have had the servo for a few months waiting for a bit warmer weather. Supposed to be 60! this weekend. I've heard it takes about 3 - 4 hours (in the driveway w/hand tools) is that close? I have the DC shop manual I've looked at it. Looks like the toughest thing is the battery & tray. Also did a search and looked at other posts. Any suggestions from previous Servo masters welcomed. Thanks.