Thanks for all the good ideas. I know it's hard to respond without pictures. I do have the side bunk guides on the boat and they have helped a lot. I haven't tried the slides but I did spray some silicone spray on the carpet on my bunkboards and yes it loaded right up and then slid off before I could hook up the winch hook. I also know of a guy who had his boat slide off his trailer on a cold day when there was apparently ice on the bunks making them really slippery. He backed his boat down the ramp and heard the boat sliding off the trailer onto the ramp. Luckily it didn't go all the way off and the motor was trimmed up so the only damage was to the bottom of the boat and to the transducer. I saw the whole thing from my truck and was able to winch my...er I mean HIS boat back on the trailer! I think I'll just get some waders for when the water is cold weather and deal with it. I can't afford a new boat yet but you can bet my next boat will have a low casting deck on the front so I can load it myself.