+1 on the eraser wheel, although I've only used them on vinyl graphics on vehicles, not fiberglass. Slow and steady is the key, as too much speed on the drill can burn the paint and just turns the vinyl to goo rather then rolling it off. Then some denatured alcohol or Goo Gone to remove any remaining residue.
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TV: 2016 Ram 2500 CTD
RV: 2015 Cougar 27RKS
Retired USAF
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