101 Question on Dictation

I'm unclear on a very basic point. I'm confused about the best approach to handling words encountered in dictation for which the correct outline isn't known or recalled.

Should I attempt to write an outline on the fly anyway, and just "put a ring around it"? (Up to now I've been making quick longhand notations and looking up the outlines later.)

I know Dr. Gregg said that the correct outline is the one you can read, but Mr. Leslie  also emphasized the importance of seeing/writing outlines correctly from the start.

Curiously, this question seems to have been overlooked in the various textbooks. Of course I might have missed it, but it appears that this was a point almost taken for granted—perhaps on the assumption that it would be addressed in the classroom anyway?

(by Joel for group greggshorthand)