The classic force is the best force out there, but is terrifying to say the least. I think i said this on another thread but ill say it again, master the classic force when you dont need it. Attempt it everytime you perform an effect that uses a freely selected card, like an ambitious card, or a sandwich effect. When you start getting hits you can practice your mind reading patter too. Untill then, use the riffle force dude. If you're looking for something different though, i remember subscribing to jay sankeys news letter and getting a brilliant force for free, it came with a voodoo ashes routine, it's a force that happens completely in the spectators hands ,with your back turned. It fooled me the first time i seen it,and i sometimes use it to great effect when performing stigmata. I might look it up now and see if i can find a name for it.