Are these the "Flight Check" pilots?
If so, quick story about the time I flew with one of these pilots that did a contract day on the side for us. Though I had nothing to hide, I was a little nervous when I found out I was going to be flying with an FAA guy. He had either heard this before or sensed my apprehension because he quickly introduced himself with, "Don't worry, we're afraid of the same guys you are...."
Sounds like a great gig. Good luck to those that applied.