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I use magnification to monitor the progress of the bevel/edge formation. I can't comment on TNT as I have never used that test, for me visual cues work better.
You should get a razor honed by a pro...

Your bevel is not set correctly. The TNT does not mean much until you are sure that whet you feel means set bevel. The geometry is so thin that the razor will bite in the nail even if the bevels is...