Tom, I've just read the description for the Back Off. Sounds great but I've no money right now.
Anyway, I've just received Cheek to Cheek from a shop and I'm glad that I bought it. The only downside to this trick is that those who once got involved in magic can easily guess the secret. But the key is presentation -- and, for me, a beginner magician, there's only one "move" I have to make look perfect. Otherwise overall this trick is a must for every lover of cards.
I perform a packet trick (and even a simplified version of Ambitious Card) on this deck first and then proceed to a normal Cheek to Cheek routine, which seem to give the spectator that the deck is normal.