Did my first opt-out today at PIT (up until this week, the FC/Preferred lines didn't lead to a NoS...TSA moved the line so that FC/Preferreds are now funneled into one).
Experience was professional and semi-intrusive (no full on groping but still...).
WTMD was fully functional. And to the 25 or so people behind me who got to use it instead of the Nos...you're welcome!
I will continue to opt out. Maybe even let me pants actually fall down next time.