Quote Originally Posted by JOB15 View Post
Whatever works for you.. I learnt the thumb pad test from Lynn Abrams...I learnt the thumb lick, sticky test from Max Sprecher . That's what works for me
Actually I was wrong, I was thinking thumbnail. I will use a thumbpad. I'm never afraid to admit when I'm wrong about anything. One can usually feel the dullness or sharpness with the thumped. I have never tried the sticky test.