I have been waiting for the quads for some time now hoping they would just give us a visual effect for our duals & heavy duals.
Alas we get this version.
Would still be interesting to hear a dev comment about this since :
1)I hate choosing between performance and esthetics
2) Stoked mentioned they are "the highest damage cannons in the game" which if your investigations are correct they are clearly not.
Their current stats are pathetic in comparison to other weapons of the same tier you're using. (in fact I have a rare set of dual heavies at mark VI that do more Damage and DPS than the quads on Tribble. And i'm not specked into the dual's energy type.
So feed back on them is
Damage is insignificant. Lower tier weapons of unspeced energy types are doing more DPS and DPV.
Unique one per ship is uncalled for, in fact i'd fire the guy who thought it was a good idea.
-10 to engines is far too much of a handicap, they shouldn't have any negative engine modifier, if they're also going to reduce weapon power when firing.
visual effect is good, I'd like to see a few more pulses though.
audio effect is horrible, they should sound beefy, heavy, "WHOMP WHOMP WHOMP WHOMP" cannons not "pew pew".