I don't write a lot of reviews but the Spiral Principle is ROCK SOLID! It's a great idea and sorta
makes you wonder "why didn't I think of that." I will be using this all over the place. It's a great
method to launch into when the spectator asks if they can shuffle the cards. Make it your own. Tons
of applications with this one, and the "beyond" is perhaps the best application of an old classic
I've ever seen. Killer idea. Love this. Go!