How to get a good ground in your Mopar

You said it, now you prove it:

How is having a completely separate ground system (these are not wood boats) better than using the WELDED unibody platform?

Can you prove this by means of accurate voltage drop testing? Can you prove it's more reliable?

I certainly can see your point about a separate, bolt on object such as the rad support, so DON'T use the rad support for a ground!! If you always use good connections to the WELDED central structure of the unibody, that is plenty good enough, and so far as RF noise, is probably better.

I would bet you money, that even CRANKING a big HP BB/RB, that you cannot measure the ground drop across the unibody proper AS COMPARED TO your advocated separate ground cable to the trunk.