I do know that the guitar was a custom built guitar by Gibson that they wanted Dave to try out and give his opinion...but also to give the guitar back. But...he liked the Firebird so much, he kept it. I didn't ask what type of pickups were on it.
And I don't ever remember Cesar playing a Firebird. Besides: a left-handed Firebird? Though I'm sure they make them, I don't ever remember ever seeing one. At least, not a 'reverse' model Firebird.