The ultimate question! I've tried various things and two particularly worked for me, first, a long range huge beam, fixed cos beam damage isn't great against player level engineering so the extra damage from fixed is welcome (also gimbals wouldn't hit at the range I'm shooting anyway), but most player ships are typically weaker to thermal (particularly those with huge prismatic shields), so it's a good choice for pvp and it reaches out 7km with no dmg dropoff, it's the ultimate poking stick. It has a marked psychological effect when you are being constantly hit from short and long range. For PvE a gimballed huge corrosive multicannon, strip the shields with the frags, then absolutely SMUSH the modules with the huge MC.All of this makes me wonder this: how would you build a frag boat Mamba using the CG double-engineered gimballed frags? The Huge hardpoint would be left over after the CG frags, and there's no Huge frag... would you stick a Large frag in there anyway or go with something else?
The truth is though, a fifth (large) frag is the best dps choice, but while I do play for effectiveness, I also play for fun, and having nothing to shoot between the jousts isn't fun for me. Plus my OCD kicks me in the nuts whenever I use an undersized weapon in a larger hardpoint
3 large frags and 2 small railguns is also a good build.
P.S. Notice how if I fire half a mag, I waste the other half before hte next pass, this is important cos all yuor damage is up front in those three shots. If you do a pass and only have one shot in the mag, you lost a HUGE amount of dps.
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