I do not have too many effects that require the use of a completely false shuffle in the hands, but I have come across a few. When I do, I choose between Guy Hollingworth's in the hands False Shuffle, or this one. I think both have their uses depending on the situation. I would suggest learning both, but this is a great starting point. The video has great explanation and is quite long, no details are omitted.
It is quite easy to understand the basic mechanics of the move, but as others have said it does require a certain knack which may take a little while to acquire. Once you have it down though, it isn't even something you need to think about.
Also if you are learning the move for the first time, completely fresh, I would suggest practicing it the way he says that Dan does it. It is a bit more natural and eliminates a move. The elimination of that move makes the sleight so much more deceptive.
With that said, not many false shuffles look quite as natural and fluid in motion like a standard riffle shuffle, followed by with a waterfall shuffle. The two compliment each other well and since it's one of the most widely used and seen ways to shuffle a deck of cards, your spectator(s) will simply assume everything is copasetic which just leaves you, the performer, to completely blow them away with whatever card effect that might need either a full deck setup, or just a certain amount of cards in a stack.
In closing, I highly recommend any amateur magician or even a slightly more advanced card magician, to purchase the Truffle Shuffle. Although it's fairly easy to perform and demonstrate, that does NOT mean you shouldn't put in some quality practice time so you can build your confidence levels and then move onto the next sleight of hand, especially if you're a move monkey like myself!