Regiment of Foote, 2nd Edition is a complete redo by Peter Pig of their original ECW rules set. The second edition is a gridded game system which abstracts out much of the usual detail found in an ECW game to give a fast, highly playable result. It is fun to play, great for teaching a bit about warfare in the period and engaging casual gamers into some of the ideas behind wargames.
While I enjoyed playing, it did not give me some of the capabilities I need to do what I want to do with battles on the Celtic Fringe. I will continue to use it as a social game or when I simply want to explore an idea for a scenario.
If you are interested in seeing how it plays here is a series of posts that I did for an alternate history battle in Ireland.