Oh that's a whole different discussion Have a look at the WW2 era combatives manuals "Get Tough" by Fairbairn and "Kill Or Get Killed" by Applegate for more info on the way that particular knife is designed to be used.
Some of mine (with some other bits...)
Spydie Stainless Delica
Artemis Defence Systems custom HAK
Ka-Bar TDI knife
JP Slugger Co. Short Sap
Surefire E2D w/ custom paracord wrap
Shivworks Titanium Top-Popper w/ happy paint scheme