Quick update. Made the return journey home yesterday and the winch-strap
is still intact.
One thing I did notice - is that the Rapide trailer has a metal flange (top and bottom) that the strap passes through that it could potentially touch, depending on the bow angle. I've also noticed the front bow roller (nut-weld) has split, which might account for the boat moving during towing. It hasn't completely broken - but when I adjusted the bow roller - I can't tighten it fully as it will break. I padded the winch-strap with foam padding to stop any chaffing against the trailer flange. I'll call RIBcraft - to see what the say about the nut on the trailer, and if I can get it repaired locally.