This one takes the idea of boom shock in the literal sense, unlike the others. Guaranteed to scare all pilots through cockpit shake or your money back!
You can drop quite a bit of armor and get some slightly less crippling speed. Also, I'd mount it on a firebrand. I'm running a variant with an UAC5 instead of the AC10 (tr0unce's Destroyer 2.0) that obliterates people and has more speed/ammo, but this is a fun heavier alternative I suppose.
ERPPC is VERY hot. Since the AC10 and AC20 are moderately hot weapons as well (HE of 40% with regular PPC) you will overheat too much, and the PPC has equally good range synchronization with the AC10 as the ERPPC.