Quote - I can assume the answer to this question is no, but I'll ask anyway:

I know all about creating full body morphs and all... but is there a way to change a full body morph back to its respective dials it was created from?

For an FBM made using a modeller, then no.
The same goes for any FBM with a custom component that you don't have the OBJ source for, otherwise see below.

If your asking about and FBM made by turning dials and combining into a single morph, then it is theoretically possible.
You'd have to set up a progam to scan through a astronomical number of dial combinations and compare each with the FBM you want to decompose.
Not something you'd attempt without access to tremendous computing resources (similar kind of problem to protein folding).