Are you kidding? A guaranteed win is hardly negligible. Sure, it's not optimal, in the sense that winning hand dominance is varied, but it provides an entire

Are you kidding? A guaranteed win is hardly negligible. Sure, it's not optimal, in the sense that winning hand dominance is varied, but it provides an entire hand to play with absolutely no risk. You're guaranteed to win, on average, the average pot size. That is a massive advantage. More importantly, I think the sort of "deck hacking" mindset the author has created can open up a world of research into this topic. Producing decks with some sort of "mean winning hand dominance" that is low would be the step you are describing. As for practicality, that's another world of research. Would it be possible to create a deck such that when shuffled a specific and non-conspicuous way produces a high likelihood of a Joffe deck? Off the top of my head, one could take the decks provided and produce decks that when riffle shuffled twice, produce a Joffe deck. So, for example, you could take out a "fresh deck" (which is rigged) from a box, and riffle shuffle it twice, pass it to be cut, and still be guaranteed a win. And don't forget that there are professionals that, with enough practice, could take an actually fresh deck and come up with a way to shuffle it so that it ends up a Joffe deck. In fact, one could come up with a sorting algorithm that takes the different types of sorts available (riffle, cut, hindu, faro, etc) and figure out the optimal path to get a Joffe deck. (maybe).