Thank you for the feedback. I've made some more adjustments based on your post as well as looking around at some other threads.
I traded Focused Accuracy for Superior Conditioning, but ended up 6-slotting Rage for set bonuses so my accuracy might still be high. Maybe I could dump Kismet to free up a slot?
I slotted up Knockout Blow almost as suggested, taking a couple Winters instead of Hecatombs to push the build up to 100% recharge debuff resist.
You did get me curious about the Force Feedback proc chances so I plugged the numbers into the formula from this thread to figure it out. You were right; with the currently slotted recharge levels, FF proc chances:
Haymaker: 20%
Knockout Blow: 90%
Cross Punch: 18%
Foot Stomp: 24%
With that in mind, I swapped them out from Haymaker and Cross Punch. Foot Stomp's chances don't seem too terrible for an AoE, so I kept that one.
I brought defenses back up again, going for 55% on S/L/E. Assuming I've got the numbers right; 1 stack of Energy Drain, plus Agility Incarnate, plus Barrier Incarnate would get me to 65% which would drop to 45% during Rage crash. Possibly overcompensating for the crash there, but that's the thought process for those defense numbers.
Brute (Super Strength - Energy Aura) v4.mbd