HI Stephan, the inside of my tank LOOKS like it is chrome with paint over it......which all peeled off obviously. Or at least most of it peeled off.
I see no reason to recoat the inside of the tank as none of my other steel tanked bikes, some 50 years old at this point, have corrosion issues. If I were not lazy, or didn't have 53 other things that need doing, I would probably take the tank off and drain it again and check out the fuel pump and filter. But since it is running perfectly with no missing or blubbering, I am inclined to leave it alone. These days I mostly ride my Moto Guzzi or for Winter it will mostly be the V Strom since the partial fairing and the windscreen and barkbusters provide wind protection. And both of those also run my heated gear. So will address Guinevere again in Spring.
9fingers