Contra is an effect you will do with only a minimum of practice. The toughest part is audience
management but even that's not hard if you keep a brisk, no hesitations, pace. The DIY nature of
this effect reminds me of some of the Steve Duschek stuff I learned in the 70's and 80's -- simple
but deceptive. I gave it less than five stars because I'm not crazy about the way they teach you to
load the wallet, but there are other options so if you like what you see in the demo don't let that
stop you. I should also say that one of the two gimmicks you make (both fairly easy to construct,
by the way) can be used for other effects with just a bit of imagination. Overall good value for
the money.