grenv:
There are probably more accurate rollouts available but they seem pretty good.

They say:
4-1 = 49.8%
2-1 = 49.9%
6-4 = 49.9%

Do you mean that if I'm from 1 point of winning (for example 6-0 in a 7 point match), I should drop the cube if my chances on that game is 49,8%? That would mean that if I'm on the losing side, I should wait until my chances are 50,2% and not to double before that. That happens almost in every game, and thus I would get one point after another until the game would be even.

Or is the situation different in games when the losing player are not as close as 2 points away?