My farm brute is rad/fire….pretty similar build apart from I have cross punch and energy torrent and they are both slotted with FF +rech IO.
This allows my recharge to spike to up to 330%,this lets my heal recharge in 6-9 secs plus boosted recharge on the other powers.
Melee def is 44% and capped fire/smash/lethal resists.
All incarnate are tier 4 as well,bit different to the norm (haven’t seen anyone else with the same build) but works for me…