memtb: Thanks for that link!
And thanks also for your signature quote:
That's not just sound advice for selecting a hunting rifle. But I think it's also close to what handgun stopping power is all about -- the ability to incapacitate an attacker when your shot placement sucks.You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong." -Bob Hagel
MacPherson's WTI wound mass numbers simply quantify that ability.