Hi All, I'm preparing my rear valance for (eventual) paint and was wondering whether it is safe to flatten/grind down the two spot welds (for cosmetic reasons only), next to the right-hand bumper holes - see attached photo. Looks like they secure the brackets for the fuel tank strap to the body. I've Googled welding websites and I get mixed opinions - some say it would make no difference to the strength of the weld but others say the opposite. Obviously I would prefer not to loose my fuel tank when I fill it up!