Yes, I think you're probably right about the warping. It's an Ocean Malibu and I had it on the cart with the bow tipping down to the ground.
Would you just leave it on the ground on its side or turned over bottom up or do you need to have a "special" rack? I can keep it out of the sun with shade, tarp or possibly a zipper cover as suggested. Of course, the idea is to keep it near the water a much as possible so it is ready-to-go. Thanks so much for any ideas.