Just wondering, what type of advantage would you get if (I understand this is not possible) you could play each hand according to perfect strategy relative to the composition of the deck. I don't know much about them, but I guess this is what those on-body computers did back in seventies. I just wonder what the difference is in "perfect" over a good count like zen. Let's assume single deck 70% or so pen with no spread. How much better would perfect be?