Advice on removing massive top reinforcement?

[Henning]

Originally Posted by H165

Are there any illustrations / photographs of this procedure?

Not yet. In the order: abrasive paper, double sided tape, thin slice "masonite" (approx. 1"*1"), then super magnet attached to masonite. This part goes into guitar.
Then outside guitar, a thin protective layer, can be tape with adhesive on one side, stick to the surface you intend to protect.
Then magnets outside, that will be pushed and dragged back and forth.
It is easier to grip a stack, pile of magnets and they get stronger thereby too, which increases the effect of grinding.
One clear disadvantage: the process will be depending on the geometry, inside and outside. For instance it will be difficult to grind off exactly in the middle under a bridge. I think. It will also be difficult to grind an oddly shaped item. All straight on and quite, a rather simple and obvious method.