Originally Posted by pit15
Um, playing BS has you surrendering once in a while, there's no edge if you only surrender those hands.
Well let's see, you could have restricted your surrender to all hard 15,16 vs 9,10,A. For simple estimation, let's consider infinite decks.
A 2-card 15 has probability of 12/169, a 2-card 16 has probability of 11/169.
Dealer 9,10,A (no BJ) has probability of 70/169.
Hence you get to surrender about 23/169*70/169 = 5.6% of your hands. Each of those hands gives you an 25% advantage, which - together with the original house edge of about 0.5% lets you have a remaining 0.9% edge, for each hand you play.
Playing 1000 hands per hour of black, earns you $1k per hour - with considerable less chance of detection. I would not call it "no edge"