Very nice write up and great photos!
Our group plays Shako 2 and have done for a number of years. As one of the play testers of Shako 2, I would like to help you a tad with the musketry rules.
Shooting from a non-staggered unit in line within 6" if you roll a 5 or 6 you can get a kill on your opponent. If your unit has not moved in the previous turn and is shooting point blank against a charging unit, it gets a +1 to the roll as well, so a 4,5,6 will cause a kill.
In all circumstances except for Russian regulars, 2nd rate (Landwehr/militia) and unreliable troops, a roll of 6 causes 2 kills.
If your unit is staggered it shoots with a -1 to the dice.
We've had games where a unit of line that was stationary will stand and shoot at light cavalry charging it with a +1. The chance of causing a stagger roll of 3,4,5,6 and a kill 4,5 or two kills with a 6, is pretty good. Then they get to roll melee with a +1 or 2 because of the cavalry being staggered and more kills
You stated that when your unit was in melee with 2 French units even though you rolled well, they still won and you unit was destroyed. Remember you have to roll morale for your unit after the melee, so if it is a 4 morale it's only if you roll a 5 or 6 it is destroyed. Unless the difference in rolling was greater than your morale/fighting value?
Shako has a Yahoo group for questions as well.
Glad to hear you are planning on playing Shako 2, I love it!
Cheers,
Thomas