I have seen Vunak's dvd and wondered and what people think about it. I looks like the type of system that if you needed to learn to defend yourself in a short amount of time, this would be your best bet.
Never seen the video but if its from Paul then I'm very confident that its great and worth it....
i have an old VHS tape of "Steet Safe," and think it's pretty good stuff.... IMO, he is one of the best at training self defense, in a manner that you can actually train.
as far as the enigma, i dunno...i don't know anything about it.