Maybe someone has an idea what happened today. Boat is an '89 Saltare on the factory trailer. Was racing to the ramp to beat the tide, water was about as low as it can be and still be usable. I'd been on and off at this level before. With no trouble, just be read careful because there is sand and gravel built up at the bottom so it's very shallow.
Anyhow, back in to normal depth of trailer, fenders about level with water surface and back of boat starting to float just a little off the trailer but held in place by the guides. Normally I can either let the winch out and it comes right off or if it stays on the trailer I just bump reverse and it slides off. It slid back just a little when bumping reverse. Throttled a little above idle and no movement. Got in the truck and backed down a little, didn't slide off. Pulled forward a little and it brought the boat forward with the trailer, then back down and it slid right off.
No marks on trailer or boat from contact. Prop and rudder didn't touch. No marks on fins or that area of trailer and doesn't look possible that they could ever touch. No marked on the spray deflector part of the hull either, or the fenders. Not really worried about it as this never happened over 3-4 years with this boat but I'm a bit confused as to what could have got hung up. Any ideas?