I recently picked up a No 53 spokeshave(antique) and it does not have an adjustable throat. However I was wondering if this would be a feasible solution for a tighter mouth. Sanding/grinding down an old used up spokeshave blade to a thinner thickness to move the blade closer to the front of the mouth. If I had to take a guess I would assume that as long as the ground blade was flat and sat flat on the frog, it wouldn't be an issue? Thoughts?