No kidding. My tank bag isn't half as nice as yours. Frankly seeing yours made me dislike mine that much more.(fasttoys1 @ Jun. 26 2007,10:57) I've got two sets of Cortech. The old ones were much better. The zippers on the new ones keep opening(splitting). The new rain covers are half as good/strong as the old ones. My covers self destructed going to Alaska.
Get some S.S. rod and make a frame between the Franken bolts and the can mounting bolt. It will hold them off your plastic. I made some and use my bags alot, no touchy, no marks.