Good for you, I would challenge the accuracy of you eye though, lol.

Like I said, my point if for folks if they doubt their bow shop, I gave them and easy way to double check. After 30years at this stuff, this method is working excellent for me. As for going anything better than .01mm, not sure it's even possible due to the clumsiness of the adjustments you can make. Let's face it, neither rests nor nocks come with fine tune adjustment knob like a machine lathe or microscope.