Having nothing else to do in the evenings between ladies in my life, I picked up a copy of Thorp's book BTD in 1975 and basically imprinted its Basic Strategy and hi-lo counting system on my feeble brain through repetition. I took a bus to Reno from nyc. Over three days I played 30 hours or so in as cheap games as I could find, getting barred from games at two casinos before I stopped being so obvious. Gradually I won a total of $200-$300. Head reeling, I departed the banks of the Truckee with a new vision of hell -- condemned to play lo limit blackjack for eternity. The next 31 years were spent away from the tables working on my bankroll so to speak. Last week I was in Vegas for unrelated reasons. I thought why not play a Martingale progression at roulette? (Deep thinking and clear insight have never been my strengths.) But I quickly found myself drawn to the bj tables. After all I had heard about casino countermeasures over the years i was surprised the game was pretty much as I remember it (this was at the mgm grand). One difference was the dealer has an electronic eye peek sometimes right away when he/she gets (a face card?) up to see if its blackjack. It seems to me this must help the player. Is this right? But of course they are playing multi-deck from a shoe rather than single deck as in the old days (I think it was 6 at mgm but it might have been 8). I didn't understand what the dealer was doing on the cut. He gave me a colored card to insert in the decks and then he put the decks in the shoe. What is he doing? Does the colored card determine the penetration? I remembered only dimly Thorp's BS but luckily didn't lose anything over an hour at the $50 min. table. But I realized how much I really like the game, especially now since I can afford it. So I've gone back to Thorp. The game simulators on the web are really great. But the BS seems to have changed slightly. No standing on 7, 7 vs Ten? No DD on 11 vs A? No DD on 8 except 6,2 vs 5 and 6? You don't draw on hard 16 with 2 cards but not three vs a Ten? These are all built into the web simulators but differ from Thorp's 2d Ed. which was refined by Julian Braun's work. Does anyone know how I can trace the changes to see if Thorp's work was modified with better data or if the modern web simulators are incorrect? It occurs to me from reviewing this forum that a lot of you are extremely skilled at this game and I apologize for jumping into these questions as a newcomer to the site and revealing the depth of my ignorance. (I wish to thank Shadroch for confirming to me that Thorp's BS still has validity in some situations. I am now trying to refine that.)