... and for handlers, those who pin the microphone on the tie, or which side of the cleavage?

make sure that the microphone is underneath the *-back-* side
I pinned the mic to one woman on her leading/front side: i.e, the one toward the audience.
and she could not be heard when she turned her head back toward the screen to highlight.

Lots of Great Points here.

Make sure you're in the Redundant FlashDrive BackUp Redundancy club.