The long version, I have in the past hot glue'd a shallow rubber bung at each bottom corner closest to the seat and that stopped the bag rubbing, also on another have used an old cycle inner tube cut into strips and again placed on the lower parts of the bag, to avoid scratching at the bottom end but in truth, the easiest option is a tank pad protector
I think tank pad is the way to go for me. I’m angry at myself for assuming it wouldn’t mark the tank. Tank pad will be ordered today.
