You're thinkin' about Quirks too much, Deku. This is magic. I don't need to think about fuel and all that junk.

[Katsuki points that out (literally, by pointing a finger at his friend while he talks), knowing that though Izuku isn't wrong he doesn't have to think so hard about it at the same time.]

I think I should be able to use the rockets without worrying if I'll need to care about gasoline or whatever. Like how Summer users can make flame just come outta their hands?

Though... now that you've mentioned using my feet to fly, that ain't a half bad idea.

[Maybe the magic can be general enough where he can just.. shoot rockets out from wherever he wants? He has no idea how it works, yet. But he's eager to find out.]

I'll have to be careful. I can get used to using a rocket with my hand again, but my feet? The balance is gonna be all off.