Basically an Adder with ECM and JJs and somewhat better hitboxes. Has slightly better heat management than those PPC Shadow Cats on the expense of mobility. _
Agreed, plus better convergence. PPCs on opposite arms can be problematic. And ACW arms tend to get blown off. To avoid, I dispensed with the ECM and did this on my 2xERPPC Arctic Wolf: _ The high torso hardpoints are great for quick peaking. ECM's great but I like the better hardpoints and convergence in the right torso.
Both alternatives makes sense in their own rights, but for me evenly distributed weaponry is kind of a must-have insurance policy. I'd hate to be completely disarmed after losing one limb or an ST. I can live with less efficiency if more durability comes with it