Long time no posts, but here is an update.
Recently we have been playing the Black powder rules, published by Warlord Games, for our Napoleonic and ACW games. We have also been looking at using the mechanisms for ECW and Glorious Revolution periods, both Pike and Shot but both different in their own ways.
We have played a couple of ECW games so far with some modifications to the rules and hoping to give the Glorious Revolution a bash using still further modifications.
The rules themselves are robust enough to withstand quite a lot of tinkering and for the Glorious Revolution the alternative unit stats come in useful, such as Untried, Untested and Newly Raised for the Raw units.
With luck we will soon be able to post the modifications here for both periods