Flexing not only my skate-nerding, but also my nerd-nerding... I remember a poster on alt.skate-board mentioned this trick. Also that day, supposedly, Penny did a 180 nosegrind the hard way--coming at it frontside, frontside 180 switch bs 5-0. And, so the rumor went from this post, nearly got that trick with the flip in it too. I think the poster claimed to have been some guy that rode for deathbox back in the day. I always took it with a grain of salt, but -- having now had someone a bit more 'in the know' reclaim it...
Any confirmation from the above post, pbn?