If you use SAPE to get around Penguin's penalties, looks like Matt Cutts and Google's web spam team are on the case.
https://twitter.com/mattcutts/status/373221842309234690
It might not be as easy as Cutts and crew think. SAPE is a fast moving target and many other BH services use mutated versions of SAPE. Maybe Google finally met its match? Sape, just like Punk Rock, is not dead.... well, at least according to this dude: godofseo.co/research/sape-dead-i-think-not/