Medusa- no way, you're using Heavy Blasters and Light Needlers.
Why Light Phase Lances over the Phase Lance, which is better, but still worse than the Heavy Blaster? Not really following the reasoning here.
Aurora; seriously? IR Pulse Lasers and Heavy Blasters, because ITU.
Granted, I haven't played current Aurora, but it wasn't a good Beam-boat in 0.72 and from the sounds of the changes, it's not now, either.
Frankly, I think these arguments-from-ships are kind of BS, anyhow; "oh, but it's all right on this one squirrel-case build with OP ship" is not valid.
Anyhow... I tried out that formula (valuing shot-speed over 2X range at a ratio) and that puts the Flux cost per shot at 1100, a bit pricey, lol.
Now I'm tuning until it's at exactly the Flux cost per shot of the original. Fair enough? I think that's far too expensive, given that Beams are inherently can't-miss; essentially, they're getting valued the same as other guns that don't miss the theoretical target, which I think is fine, especially now that that target is Destroyer-sized. I think you're valuing this supposedly-awesome thing far too highly, frankly. But I'll play along; it won't change Vanilla stuff but it might contain a few squirrel cases, so what the heck.