FIRST, THE BAD NEWS: When you learn the secret to this shuffle, you will kick yourself. Damn, you'll think. It's too simple! Really? Why didn't I come up with this myself?'??
THE GOOD NEWS: Remember why you purchased this download in the first place: when Biz demonstrated it, it looked great. Why? Because, as simple as this shuffle might be, it really looks great. And this is a full deck shuffle. So don't let your first reactions to the 'secret' ruin your day. Some of the most fooling principles in magic are simple.
Biz is an excellent, excellent teacher. You will be up and running with the basic version of the shuffle--a totally performable version, BTW--in literally minutes. For the price of this download, that might be all you get from some other magic vendors. Not so here. BBM and Biz don't just stick with the LPU (least performable unit). You get 30 minutes of solid tuition where you will learn the basic shuffle and extra subtleties to add to make it look even better. Biz also adds in bonus material to give you ideas on how to use this shuffle with your existing magic.
There are any number of false overhand shuffles. If you don't care about full deck order, a jog shuffle is about the simplest way to go and looks great. Full deck shuffles? There is the GW Hunter shuffle, the Redfish shuffle, Victory Shuffle, the Combination Shuffle, and many more.... All are worthy but all are actually much more difficult to learn and execute than this shuffle. And those other shuffles will take much more practice to look natural in your hands.
This is probably the easiest full deck shuffle you could hope to learn, preserves full deck order, and looks totally natural out of the gate. You have options to add subtleties to make it more fooling. It looks good with the backs or faces of the cards turned towards your audience.
So, Perfect? Well, no. Not really. There is no such thing as a perfect false shuffle. But it's a really well taught, great false shuffle that is it easy-peasy to learn. And fooling. Recommended.