Originally Posted by Lihu
As an expert in skulls and blades, I can say that the main difference is that the skull involves a lot of expletives while a blade does not.
That's pretty much it, not much to add. Also, on a good skull, more of my hand goes numb - a REALLY good sign of proper execution.
(I wonder if there's a matrix of all the hits, and which are subcategories of the others, example, the "Duff" is really very general and can be broken down to more specific hits. as goes for the breakdowns of the Miss, Whiff, Undercut, Flail, and the dreaded Admiral Nelson)