Well,
Spheres are spheres after all.
I'll need to re-read your posts in this thread
before I define things a bit better for you.
You are on the right track though.
The zone stuff is a touchy area.
It takes a lot of time to understand them and work them.
Even haveing a visual editor is pretty much useless
if you don't understand the basics.
I'm the classic example of that!
GWX 2 had my ASWT that we needed to release a patch for.
Pretty shameful considering I had the Visual Tool!
But I did not understand the zones and such at that time.
I took the time to learn and improved my approach to zone work.
I studied what VonHelshing did.
I saw what he did and follow his work.
I'm not saying others damage models are wrong.
I just prefer VonHelshings approach.