I read your blog, interesting!
You write "Formations: I had the French in column and the Russians in line. On the miniatures board, this means the French units are 2 inches wide while the Russians were 4. This allowed the French to pack more units in a given space". I don't think this is historically correct, because columns generally advanced with enough space between them so they could deploy.
We use our own house rules for facing…
Units should be placed in the hex so as to face a vertex of the hex (one of the points). The front two sides of the hex are then the unit's front-facing, the back two its rear facing and the side two its flank facing. The units facing can affect how the unit may move, retreat or battle.
Infantry in square or built-up area and Light infantry type units in forest, sand quarry or marsh are the exception to this; all hex sides are front facing.
Artillery may only fire though its front facing and infantry only through its front or flank.
A unit may change facing as a part of movement. It may change facing within its hex or upon entering another hex. Cavalry moving to battle in melee may change facing in the initial hex by one hex side, but no more during movement.
Infantry coming out of square may choose their new facing. Units may not change facing when retreating.
And have you looked at the Generals, Marshals & Tacticians expansion, that has some interesting cards!