So, this morning's shave with a full hollow Wusthof was maybe the closest shave I've had yet. Really a damn fine shave.

2 1/2 days of stubble was whisked away with a feathery light touch of the full hollow to my skin. Alum gave only spotty stinging in a couple of places my touch wasn't quite "feathery".

Anyhow, as has been said by those wiser than me: "tough" whiskers don't require a heavier grind. What is most likely required is a very sharp razor!