How should you strap a boat to the rack?
I've been giving this subject a little thought recently. I tend to strap my creekboat cockpit down, hull up on the roof rack of my car for transport. I do this because (a) it gives me good clearance for driving into a garage, (b) it's a very stable position on my rack, and (c) it's easy to reach over the top and strap it on.
However, I've been beginning to wonder if having the hull baking in the sun while I'm driving around is not so good for the plastic. What are people's opinions on this? Am I exposing the hull to significant sun damage?
If that's not the way to strap it, then how? Hull down is generally considered bad form. I have Thule stackers and find that if I strap it on it's side, hull against stackers, the stackers compress the hull in much the same way as if I had the boat laying hull down on the rack. If I strap it cockpit towards the stackers, I find the boat tends to slide on the rack (maybe I need some pads on the bars) due to the rounded sides on the creekboat.
Anyone with sage advice? Thanks.