I believe they are clearcoated.

You could "mask" the areas that you didn't want to remove or have an effect on. Using a chemical like laquer thinner, you could wash or dislove the clear coat to expose the vinyl. However this may not be necessary.

If you use a #11 blade and gently etch the outline of what you want removed, a bit of heat will allow the vinyl to seperate from the surface of the model. This would allow for only the graphic to be removed.

You can then remove your masks and board sand the clare coate so the edge feathers. Another clear coat may allow for the disappearance of that feathered edge?

May work with some success, Worth the try on the smallest marking you elect to remove.

I do graphicxs and have much experience with paint and clear coats. This is what I would do.

I also would apply the new vinyl markings over the clear coat.

Charles

www.cfcgraphics.com