Scourges are awesome, i guess we can all agree on that. But one thing that bothers me is the thought of their speed.
In the Codex we learn that they get there bones hollowed, get some extra muscles and adrenaline injectors, but that just doesent seem enough to me. I cant imagine that a Scourge can get very fast, just by its own power. Sure, it can glide on the airstreams, or dive from a high point, but without some kind of acceleration (Anti-Grav Unit?) i imagine they would only be able to slowly flap into the air.
What your view on this?