Gouges /scratches on torsion bars.. are they useable?

I used a vice grips with some copper sheet metal I had for backing up welds. Just like a soft jaw for a vise. I wouldn't be afraid to dress them up a little, just don't want to go too deep as it is taking away from the bar. Mine actually came with a broken bar and a junkyard replacement. What is the intended use? Mine is a slant six grocery getter. If you are building a big block wheel stander...I'd reconsider.