ORIGINAL: LexLegis
Napoleon needed almost six month to march from northern France to Austerlitz.
What?
French left camps in Boulogne August 26 and Austerlitz was Dec 1st/2nd, that is a bit more than 3 months about half the time you said.
That sounds about right for what I have seen in COG EE at the beginning of 1805 single player scenarios. A big forced march or two to NW or central Bavaria turn 1 or 2, a regular march to the vicinity of SE Bavaria turn 2 or 3 and a battle there (Ulmesque), another regular march and a battle inside Austria turn 3 or 4 (like Austerlitz).
I do like your first point though. If Depots just allowed replacements to trickle in, gave an "in supply bonus" and raised the forage level of a province by 50-60k it would prevent or reduce some of the large stack damage.
