Very interesting. Good to see the Americans go toe-to-toe with the British, and not have their arses handed to them.
I for one would be interested in seeing your rules once you're happy with them...
As it turns out, my gaming group is going the the AWI this Friday (the 4th of July, so we thought the AWI would be an appropriate period to game that day....). The scenario details should be up on the "AWI Stuff" thread here in just a little bit.