Great feedback, thx

Neither me nor the players who provided/provide feedback found that the knights need a rebalancing.
We find that with those rules Knights no longer are no-brainers; they now need careful and proper usage but are devastating if and when properly used (flanking, combined charge, etc.).
We have a couple of players with cavalry-heavy armies (and played a couple myself) and they are still pretty dangerous. I've seen lot of games won with knights charges, but rarely with massive front-charge.
I don't know the UK meta-game and cannot assess any differences
