If Turanil (or anyone else) has a suggestion for making Blood and Space better I would be happy to hear them.
If a 2nd edition of Blood & Space is on the work, and readers suggestions sought, I would be glad to read it carefully and give my detailed feedback on it.
Right now, the few things that I remember off the top of my head, are: The Trailing feat: there is no difference between the Trailing feat, and the trailing maneuver description. Well, I suppose that like other piloting feats, those who don't have it take a -4 to their check in attempting it. Likewise the Healing Frenzy feat is unclear; something is missing to understand what it brings to have this feat compared to someone who doesn't have it. I would also point Explosives Expert: this feat enables to create explosives with a Demolition check; maybe I don't understand things, but Demolition is about manipulating explosive not crafting them, and why not just use Craft Chemical to make explosives as indicated on the table ? Otherwise, I would be glad to review the character classes, which IMO could get some improvement, and better background descriptions.
In any case, I said that I find Blood & Space mediocre (mainly because of such details), but I don't regret having bought it. I would say I regret more having bought Dragonstar, despite that one has much better layout and art, and less editing problems.