Roof "ballooning" while open trailering (!!)

[kbinde2]

When I first purchased my Special coupe I trailered it from Michigan to Delaware, on a U-Haul car trailer. I backed the car on, and made the trip with no adverse effects, except for a wheel strap working loose., the rachet strap had been cut and was just long enough to secure the webbing on the 21" tire.
If I had to trailer again, it would probably be enclosed..