Originally Posted by mlad1101

Confused by a few things here. Complimentary medallion upgrades wouldn't come out of Z so the Z availability at Gold window has no effect, its X.(On domestic Business branded flights, First comes out of V.)

If it is a true BE domestic flight as you said it would have to be transcon(ie. JFK-SFO/LAX) There is no complimentary or mileage upgrade inventory released at any windows, if you were to clear either way it would be at the gate.