It generally works pretty well without breaking the game. Sometimes a "before combat" action can cause problems but you can usually use your critical thinking skills to fix these problems when they come up.
Our house rule also allows players to move after they finish a battle if the battle started during a previous turn. Yes, this can mean a a player can fight 2 battles in one turn.
In Runebound very few battles last more than 3 rounds anyway, and in a way dragging out the battle over several turns makes it more exciting. Especially if you racing for the win.
Edited by Wade Watts, 12 March 2014 - 02:13 PM.