[Nodachi]

Gorza, you're right it is a tough combo to beat but there are ways.

• Mine everything: force him to put sweepers on his ships. 30kt each means fewer guns.
  
• Seekers: use lots of them and force him to be PDC heavy. 20kt each
  
• Cloaking: use cloaked ships to get behind his lines and hit his planets. When he catches on he'll put sensors on his ships. 40kt

By doing all that you're forcing him to react to you and burn up tonnage on his ships.
Although now that his ships have fewer guns you still have to be able to survive getting close to him so you can hit.

• Emissive and Crystalline: a couple of plates of emissive and tons of crystalline, the crystalline will get hit first but the emissive ability should take effect first (Somebody correct me if I'm wrong on this!). His shots just build up your shields.
  
• Emissive and Organic: pretty much the same thing but the organic will Last longer because it has less damage to regenerate.

These are just a few ideas I'm sure there's a million more out there. Part of the beauty of this game is that there is no perfect strategy.