when the rubber wheel eraser came out it seemed like the answer
to removing vinyl from the surface without marking the paint, but
it proved wrong, it left swirl marks and burn marks and it did not
become popular with sign guys, in the sign business we don't want
to take all day to remove graphics, the heatgun worked for me
and many other sign companies, heat gun and adhesive remover,
i did try easyoff but it marked the surface so i never again tried
any liquid again in fear of having the paint ruined, but now days
the digital print has taken over individual lettering 8)