Well in classic SFB terms this is certainly an "Uber" ship, twice as powerful as any BB found in the standard game. These "Type6" phasers according to the table do not seem as powerful as Type 1s, and if Phas X are more powerful than Phas 1s then probaly 2/3 split seems approx right.
And these phasers on the SSD are set up to fire twice during a turn.
Furyofaseraph, if you want to do this SSD as close to how Miller has it drawn out, I would say skip the phaser-X and try this:
Ph-6 #'s 1-8 = 4x Phaser-G2
Ph-6 #'s 9-12 = 2x Phaser-G2
Ph-6 #'s 13-16 = 2x Phaser-G2
Ph-6 #'s 17-20 = 2x Phaser-G2
Photons A-F = 3x Heavy Photon Torpedo
Photons G-L = 3x Heavy Photon Torpedo
Do keep in mind that Mr Miller's SSD's are balanced to his rather odd 10-impulse/turn ruleset, and therefore will not translate neatly to SFC. You might have to tune and tweak a little or a lot to make the power work out (his power fighres are WAY HIGH- but you probably noticed
). Also, due to the rapid shield regeneration of SFC, his shields usually run strong. With the way that this design is made out, the ph-G2's would slice through slields like the ones shown, but only at the closest of ranges.