With the popularity of Dan Merser's Lion Rampant Medieval rules it is certainly worth me mentioning that Dan had opened a forum for any rules questions/debate and additional rules.
Here's the link to the Dux Rampant Forum:
I'll be repeating this post on my La Journee Blog which deals with Early C15 Warfare. Please feel free to pop over to the blog if you haven't had a gander before.
Cheers for now.