I have not read the Poker Strategy SAGE or Nash equilibrium articles, instead I read

this article.

Now, as I understand it, the strategy according to the Nash equilibrium is the optimal strategy during heads up play when effective stack size drops below 15BB. The article I referenced to shows two tables with all kinds of numbers, which I don't know how they're exactly calculated, but it greatly has improved my game. I used to win heads-up play around 1/3rd of the time, now I manage to win heads-up play around 2/3rds of the time.

As I understand from that article, SAGE strategy is a mathematical simplification of the Nash equilibrium strategy and that's why I understand PokerStrategy is offering SAGE strategy to its silver members and Nash equilibrium strategy to its golden members. I think that it is wrong.

The only advantage of the SAGE strategy seems to me to be that it can be used during live play, contrary to the Nash equilibrium strategy, since you can't carry around such charts in a casino. And that's where it ends, in my opinion. The advantage of the Nash equilibrium strategy is that it is more accurate and that you can easily look up your hand on it if you have it near your computer. After a while you'll intuitively know where your hand is on the chart and from that moment it's bye bye to SAGE strategy during live play.

Strategy based on Nash equilibrium is very easy to understand and it shouldn't be kept away from silver members, it might even be a good idea to offer it to bronze members.

Of course that is unless I'm missing something, that SAGE truly is a more efficient way to deal with heads-up play, but I really doubt that.

I do have some questions though. In the table in the article I referenced to, there are multiple entries for 63s, 53s and 43s, why is that?

And if I'm playing on PokerStars with antes, how should I relate that to the amount of big blinds. Do I simply add the ante to the big blind, or should I add a third from the ante of the small blind as well? Even though that becomes a rather small number in comparison to the big blind. Or something different?

Thanks in advance.