I recall writing some, but the file is on another computer, there were also some lists.
I can’t think what they were off hand but as I fought Agincourt (in 10mm – article was in a Wargames Soldier Strategy magazine) I must have done something useful!
I would treat them as difficult ground (same as woods thinking on it) for mounted cavalry and uneven for infantry.. You could add a bonus to the defender if cavalry charge a unit behind stakes or make them take a morale test.
However, open to suggestions if none of that works!
And yes it would be nice to actually redo the original lists – must find some time!