I'd be afraid it would act like a scribe line on glass or tile if you know what I mean. You would want the bottom of the groove to be rounded, not square as it would be from a hacksaw cut. The square 90 degree angles would create stress points that would cause it to crack. I agree with the post above; find some pads designed for racing and pop them in before you go to the track.
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About my name: I occasionally play a Conn 10M Tenor Saxophone - so 10MPlayer
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