Quote:
Originally Posted by garbubba
Remember most V's hang well off the back of the trailer on the bunks (at least both of mine do with stock trailers).
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There is a condition called "Cupping" that happens to boats on trailers. It's when the hull, just forward of the transom, for the first several feet going forward is actually pushed upward over time and the fiberglass takes on a "set".
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Older boats (Because of their age and the number of hours spend sitting on a trailer) are more susceptible to it than brand new boats. Most times the condition is not reversible. The condition causes a loss in performance of the boat and reduced control of the boat at speed. It is caused by the boat sitting on a trailer where the rear of the hull hangs over the end of the support (Bunk or roller) by a few feet, and is further aggravated by the weight of the engine bolted to the transom. That's why it's important to make sure that the last roller or the end of the bunk is right at the edge of the transom or, at most, only a few inches in front of it.
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1987 V20 w/1987 150HP Yamaha on a Shoreland'r Trailer
1978 16.5 Airslot w/1996 120HP Force on a Four Winns trailer
1996 V21 w/1993 200HP Mercury on a Shoreline Trailer
All towed by a 5.7L Hemi Durango.
If God didn't have a purpose for us we wouldn't be here, so
Live simply, Love generously, Care deeply, Speak kindly.
(Leave the rest to God) 
Silence, in the face of evil, is itself evil. Not to speak is to speak, not to act is to act. God will not hold us guiltless.
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