If you've had a razor done right for you then you will know what it feels like, then the test us the shave, if you have been shaving for a while your technique should be good enough to tell when the edge is right , all the other test won't tell you like actual shaving does , they just give a clue to it being ready to try. The only way I knew what a really shave ready edge was to send my first razors off to be honed. Now that I can shave pretty good I know when it's rwady for refreshing. Tc