I agree that there is no perfect strategy. You can do your best to make your strategy as good as possible, see if you can optimize it. But you will always play against your own disadvantage. Or you have to keep yourself busy with arbitrage betting if vaue betting, but you can't do that for too long because it's a matter of time before the bookmaker realizes that and then you get a block. And in a casino, a strategue has no jack at all, because arbitrage bets do not exist there, of course, or their software must be broken.