I have powered our old boats on, winched them on, and once backed the trailer in a tad to much, admiral came in a little fast and tried to land in the back of the truck!!!
I quit power loading after seeing what the bunks were doing to the gelcoat. It was ugly! The carpet is more abrasive than you may want to believe.
With the three boats we have owned, never experienced any trouble winching a boat, the winch has two speeds, when you use low, it will pull 10000 lbs very easily.
I am not sure that I understand what you guys are talking about with the double roller. Wife glides boat onto trailer, sometimes we are 1', others 2' from being all the way on. I feed out strap between the rollers and winch it up the rest of the way. The eyelet and strap glide right over the roller, I would never tighten bolt so it can not pivot.
To me, it sounds as if someone is having a difficult time winching a 4000 lbs boat, they are trying to use high speed. A small child could winch our 8000lbs boat.
I agree with above post that says, "be patient and I would figure out what works best. It was good advice and it didn't take long to get a routine down that wasn't frustrating".
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2000 248 5.7L DP
'92, '94 SXI 750, '08 STX 15F, '12 Ultra LX 300
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