True...
Isn't the NO concept a place where the rubber meets the road for most players. After that point, the player is statistically likely to be winners if an advantage player or loser if versa visa.
Kind of...but 1 SD is a bit arbitary. Technically, you are statistically likely to be ahead of the game after playing through a single shoe. But, you can, and often still are down after both an hour and the number of hands required by NO.