Thanks everyone that replied yesterday ..
Just what I needed to move forward.
Last night, I recorded my son playing my Martin OM-21.
Glad he was home .. because his playing is WAY better than mine
We tested a variety of things. But this clip stood out.
Note the photo in the video is not where the mic was placed..
Mic was a single Octava Mk-012 about 12-14" from around the 13th fret.