I'm going to agree with Dave and Dutchfire here, I hadn't known this strategy before the DG, however I've tried it in a few games and it has turned out well for me in situations where the enemy does not have a counterattacking force, exactly the situation we're facing with Germany. Even if your forecast is dead on there will be no detriment from waiting on the promotions of some of our units, if this forecast is even slightly off this idea, of waiting on promotions, will have a benefit to us.
On a side note I do not believe that Dutchfire was attacking you, all I see is an alternative suggestion.
On a side note I do not believe that Dutchfire was attacking you, all I see is an alternative suggestion.