Enourmous misimpression
DAS, DA2, it all sounds so very great and they are good rules but when compared to blackjack paying 3/2 or 6/5 they are barely significant and here is why I think some civilians get fooled.
They tend to forget that when you get a blackjack you will generally win that hand except for a rare push, but will never lose a hand with a blackjack. At the same time every time you split or double or combine the two, you will definately not win. In fact over time you may win just slightly more of these than you lose and on any given day easily lose more of these than win, resulting in an overall small player advantage that is dwarfed by the disadvantage of 6/5.
Now if you have found a way to win every double and every split, you might be on to something.
ihate17