My great-grandfather's razor got a chip in the toe a while ago, so I smoothed it out with files, but I have a hard time shaving with it when I see the spine but the toe is now farther back. Here's a picture:

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I was thinking of trying to grind down the spine to the level of the chip (shorten the blade). Do you think this would be ok if I made sure to go slow and cool? It's full hollow so I'm a little wary of using the grinder. I think I would have to take the whole chunk off rather than taper up to the existing spine because the chip is a good 3/8" in.