Due to my trailer design the boat had to float off the trailer...the trailer bunks had to be completely submerged. When launching by myself that was an issue. I tried the Slick Bunks.....but using those I had no control at all. So I removed the Slick Bunks...but I now use Liquid Roller and spray my bunks twice a year....just a light spray in a certain area on the bunk. Then I can back halfway into the water..unhook and shove the boat off the trailer. From talking with folks it seems a lot of boats have trouble coming off the trailer.
Regards