by Renato » Nov 3rd, '05, 17:41
There is a Raven video available for just over a tenner - I did see it on MagicTricks but it's not there anymore. I think it has the answer to your question so it may be worth getting unless others here can advise?
I have the Raven, perform it occasionally, but was gutted when I heard someone saying that they'd seen how it was done on this Street Magic Revealed show...
Oh well.