[countrydad]

I agree that the vinyl won't hold up to the heat and you should probably cover the areas exposed to heat. I have a heavy leather set of bags and don't use the supports. I really can't see any way that mine could cause a problem unless they fell off the bike, in which case supports won't be doing much.

Let us know what you come up with. I am sure that this is a problem more than just yourself is/will grapple with!