Douglas (of Noverre) who lives only a few miles from me came over for an evening during which we fought the battle of Boltsdorf. It was very useful as it enabled us to play test the rules I had chosen - "Weight of Fire" (http://www.angelfire.com/wa/rogerswhome/rules/horseandmusket/SevenYearsWar/weightoffire.pdf)
The battle resolved down to an infantry contest by firepower, and we did not get a chance to try out the melee side of the rules.
Things we found we needed to define/modify just through playing the game:
1) How long is a 'turn' in real time - we think it should be something like 15 or 30 minutes. This can be helpful for scenarios etc, when you may set the aims of one side to "hold the bridge for 4 hours till ...".
2) The need for markers for shaken and exhausted units.
3) Moral - casualties - Perceived loss - ie morale is taken when unit loses 1/12th of its original size and goes exhausted after 50%. Maybe 1/12th rule should be to its current size ??
4) When taking morale there is no modifier for an unsecured/in danger flank.
I expect we'll pick up some extra things as we use the rules more.