I've been running a build using Drunken/Desperate Blow while using Balanced Stance.
Does Steady Stance (e) end once you are knocked down from Drunken Blow??
And Does Balthazrs Pendulum end once you are knocked down from Drunken Blow?
Don't know about Balthazar's Pendulum, but the knockdown effect from Drunken/Desperation Blow triggers Steady Stance's adrenaline and energy bonus. You don't get knocked over, but Steady Stance ends.