Yes, that is of course true. It's just a bit hard to accept, at first at least. Since I haven't seen Macross Zero, I can't say from that point of view, how does it look/feel like in the actual anime. I'd just think the right way to do it would be naturally making the Valks as prototypes of Vf-1, looking like ones also. Or is it just not cool to make less advanced Valks instead of the modern Vf-0. I would've liked it that way, from the point of Macross time-line. Well, as said, at least Vf-0 is a pretty one. I'll have to watch the anime some time... Oh, and if that Vf-0 to Vf-1 developement was explained, it would be too stupid to hear anyway.