30 km? Seriously? I'd estimate 0.5 - 1.0. 2 km tops.
Mihawk knows he has nothing on Whitebeard. When he sent that slash he wanted to see "how far he was from that man." The quake fruit didn't enter into it, Whitebeard is on a different level. How many times was Whitebeard cut in this war?
That was my point. We know Shanks and Mihawk are similar in swordsmanship with a nod to Mihawk. Shanks also has a completely outrageous haki. It isn't that he has two tools. It's that he has one tool almost as good as Mihawk, and is godlike with an additional tool.
Well there's the fact that the only time we've seen him swing, the sky, you know, split.
So Luffy's devil fruit isn't actually any good, Oda just used him to introduce us to DFs? And Smoker can't really logia disperse, Oda just wanted to make logias look cool? And rokushiki can't actually hurt anyone, Oda just had to make CP9 threatening?
Your argument comes down to "Shanks was too much of a badass to actually be that badass. The cool things he did can't be real because then he'd be too cool, those things were just flukes to make him look cooler than he actually is."
You keep saying this and it's
laughably wrong. If the Haoshoku was only good for knocking fodder unconscious, Doberman wouldn't have been wetting himself about Luffy having it. Haoshoku is the real fucking deal.
You all keep coming back to clouds. The manga explicitly states it wasn't clouds, it was the heavens. I can cut ice with a big knife. How can you cut the sky? It's unnatural, absurd.
Gases take the shape of their container, chief. You can cut through them easily, sure. They don't stay cut.
http://en.wikipedia.org/wiki/Kinetic_theory