Firstly, thanks very much for making this scenario!
I've just finished a multiplayer game of it but it did not go at all well for the Yorkists, they're Billmen just seemed to run away at the sight of blood. In fact, I've never seen so many units Rout in a single turn before!!
We didn't start moving either Stanley or Northumberland's forces until the break points had gone over 20, but the game actually ended the next turn as the Yorkists just melted away.
I've often found the Billmen to be pretty rubbish in the Wars of the Roses scenarios, so wonder whether (some of) the Yorkist ones should be made a little less brittle. Admittedly this is only based on the experience of one game. It was fast paced and fun, but in a way slightly frustrating because I was hoping for a bit of a tougher fight. Poor Richard never really had a chance to call out for a Horse...
My second thought revolves around the house rules for allowing Northumberland and Stanley to move - it may be me but I found the instructions on that a little confusing and I'd much prefer a simple "once this happens, Stanley can join in".
Putting all the above into perspective, I still really enjoyed the game as it's one of my favourite Wars of the Roses battles, one I'd like to refight in due course.
Bill
Challenge is on the system, I will be Richard, password is "henrytudor".