Neil I'd like to get your thoughts on this one....
I think you already know my thoughts (hey, how did you do that?) --
Personally, I'm not a fan of the usual Epic board, as it looks too gimmicky for me. On the other hand, Xpert Epic, one of the routines in the booklet that accompanies The Xpert, is a standard part of my performing repertoire. It lets me do a very deceptive and clean three-part prediction, and all of the predictions (written on the performer's business cards or postcards) can be given away as self-promotional souvenirs.
Richard Osterlind also has a very nice version in his book, The Very Modern Mindreader.