I think that a non-radial-symmetry would deviate too much from the established design ethos. Whilst I really do find the Thirdspace aliens cool, its just not what I'm goin for this time around. Though, you give me a few ideas I might want to explore ^_^ (more the capital ship than the fighter).
I just gotta wait till it comes to me. "Too many mind" kind of thing. ("Mind sword, mind people watch, mind enemy. Too many mind. no mind.").
In other news, err, my "rehash" has hit a creative snag as well, but I will keep playing with that too.
I am off to clean my room. Physical labour always helps my creative processes ^_^.