I think for the Dark Avatar expansion (or even version 1.4 of GalCivs 2), a new method of ship design should be used. At the moment, I end up with upto 10 versions of the same ship with upgraded weapons. However, when I start a new game, I generally like to change the lot out to match my circumstances. Therefore, the 10 designs in my list become junk. What would be nice is if you could have one central design (without the functional components), and a version number for each generation of the ship. Then, in a new game, only the core is imported.
Or something.
Cheers.