Was your blade a Feather brand? They are known to be sharper than other DE blades and numbers in the 30’s is not unexpected. Remember that your PT50 has a resolution of 5gf.
Visit here, scroll down to Click to See Data Summary – Sharpness and open it:
https://www.refinedshave.com/razor-blade...s-testing/
If you are at all aware of what you are doing when testing with the PT50, you will do fine. Really! Don't overthink it. It's just not that tricky to get good, consistent readings.
Visit here, scroll down to Click to See Data Summary – Sharpness and open it:
https://www.refinedshave.com/razor-blade...s-testing/
If you are at all aware of what you are doing when testing with the PT50, you will do fine. Really! Don't overthink it. It's just not that tricky to get good, consistent readings.