What Ottarrus says on requirements is a good summary of the three types of things to address and a pretty good layout for it.
More examples is something I'm running into right now, and though I'm usually three edits and into the email, after two edits, I think I need some more examples and more reality checks, especially on some of the more 'wargamy' rules in the back. I mean, they 'seem' practical. But I can't test them as well as with vehicle builds and I'm still ironing out things there.
As for facing, even the the Agility -6 vehicles, as of last night, at least, can do a 180 in a little less than a minute, so the facing of a spinal in a six minute round shouldn't matter - especially since High Guard armour, unlike vehicle armour doesn't care about faces. Or batteries bearing. The way Highguard works, a 100kton ship can still go just as fast as a fighter... it just takes longer to zoom past your window so it 'looks' bigger. No rules tell us they don't have commensurate attitude control, though the longer 'spin arm' on a flip probably pushes those compensators on either end harder.