@Kai, I think Appoco already has that part about allocating the reflective damage sorted, check his post.
Ziks are going to be Ash's nightmare, but I think that's for the best. By the looks of it, the Ashtaari will be great defensively and the inability to reflect damage to stealers is going to be their major weak spot. It provides the players with some very interesting strategies, which I for one think is great.
The init range should probably start from 5 up to 9 or something like this, with only two or three ships sitting at 8-9. That way the Ashtaari will be quite effective offensively against Xans. While we need to make sure just some of the Terran's ships can avoid the reflect, not all of them.
For me the general idea is shaped, what we really need are potential sets of stats, which I know some are already doing. Then we can really see the bigger picture and discuss how to balance it out. I'm open to ideas/discussion though, so if you have any better ideas @kaiba, feel free to share