I can speak from experience. It was only a three hour cruise... er make
that a three minute transport from shore to storage. I was tired and
only tied on with lines over the hull. At first stop, I was horrified
to see my kayak launch out over the hood of my van, like a bar of soap
coming out of your wet hands.

The Overflow luckily is used, plenty of scratches, and 40 ft of sliding
on asphalt did not hurt it any. The thought of causing a serious
accident did get my attention! However the worst was having to get out
and pickup the pieces and put it all back together, with all those
other folks pointing their finger, and gauking at me! They had a good
laugh!

Be sure and use the bow and stern lines, :-() Sheepish me, TnT