Originally Posted by
More Champagne Sir?
You could perhaps print one real one for boarding the aircraft, and one fake one showing F, so that you could use the fast track line at security...

And if TSA decides to do a deep search and finds the real BP?
I've had TSA officers look through all my papers before.
You might be able to talk you way out of it ("But officer, I upgraded after I checked in"), but you would be counting on the TSO's stupidity.
You'd be better off only bringing the fake one, and then telling the GA you lost you BP.