I'm still not sure how much I liked the flight system in Soku, though I don't hate it outright or anything. But I'm honestly concerned about this "100% aerial combat" approach. I suspect that it's an attempt to make the combat more like that in the main shooters, at least stylistically, so my opinion on this will end up being from the perspective of a shoot-em-up player. If what Ikari is saying is true about you naturally floating down, and you don't have absolute control over your character's movement like almost all shooting games do (not just Touhou here), then it isn't quite like the combat in the main shooters anymore, is it?