Came across this on youtube, it's from a couple of years ago, a right handed player trying to play lefty.
He uses a lefty ASAT Classic for the video, although for some reason the headstock is never shown and the G&L headstock is modified in the thumbnail, probably to do with sponsorship.
I can play right handed guitar upside down, I'm sure many lefty players can, mainly because it's often the only way to try a particular guitar.
But to play a right handed one correctly is next to impossible