I know Meta Knight doesn't rely on his air speed as much for recovery. But air speed isn't just for recovering. It's useful for spacing aerials and DI too. I personally think Kirby would be fine be fine at a 1.00 value, but considering that his air speed has been low, I doubt they'd ever increase it that much if at all (I mean it was only .85 before and they NERFED it) so I just thought .90 would be a fair compromise. At this point I'd take ANY air speed increase as long as it at least gets him back to his Brawl air speed. But the more the merrier.