A friend just picked up a canoe I restored for him. He strapped it onto the top of his SUV using what are called 'cam' straps - not the ratcheting type - so the pressure wasn't too high. After his 2 hour trip home he noticed that the straps had left a slight but noticeable 'pattern' on the canoe's painted surface. The paint had been drying for 2 weeks. It was an Epifane's paint - 3 coats. So the question is: how long should we allow out painted canoes to dry before transporting?