Please consider adding a -10% armour debuff on Butcher/ Staggering Blow combos.
Basically cannot scratch soldiers even going and landing 4 wreck armours and a clobber are not reasonable for torment stacking on a berserker spec.
Add it to a very deep block of feats like hammer and anvil but currently staggering blow -hit rating debuff is pretty pointless. Staggering Blow for most purposes is to gain Reverse Swing this might give it an actual purpose to allow berserker to scratch tanks.
Just an idea.