Re: gas tank giving me the blues
I've heard of using a piece of inner tube on the top bar, under the tank, but I have another suggestion. This one I've used on several bikes and it seems to work well.
Go to an automotive windshield/glass shop and ask for a foot of glass setting tape. It is a rubberized compound that when wet with water, WD-40 also works, then allowed to dry becomes sticky. It will hold the tank in place with very little pressure on the studs. It's easily removed if you ever need to take the tank off.
Thick double sided tape will also work. And do not tighten those little 5mm fasteners as if they were lug nuts on your car. Overtightening the tank mounts is one of the most common mistakes made and results are where the OP is now.
Age and Treachery Will Always Triumph
Over Youth and Skill & "Charlie Don't Ride"