Glad you got a good vibe about PAT, I got exactly the same thing in 1999 when they did a presentation at PPSC one evening. They got my IR business and I thought they were simply excellent. A view not changed by my going on to be an instructor at a rather large FTO in Andalucia.
The Flyer show is a bit of dogs breakfast. The people present don't always present their organisations in a way commensurate with reality. Its all good research though and thank you for taking the time to post so exhaustively on your day.
Good luck,
WWW