Thanks very much!
I did just discover from watching a video, the BEFORE and AFTER are (as you said) only for the Paragraph spacing. And the "Line Spacing" is (as you said) for lines within paragraphs.

The test I did was actually for paragraphs because I placed a paragraph marker at the end of each line.

Its funny that in the dialog box, MS didn't think to put the BEFORE and AFTER spacing within a separate option-group, and clearly show it as specific to paragraph spacing, and then put the "Line Spacing" in its own option-group.

But a little digging never hurts anyone! :-]

Thanks very much for the answer.