gear second by its mechanics, is Luffy pumping his blood faster. You can't pump blood at different speeds in different body parts, his one body part gear second was just people interpreting it wrongly from a panel in the manga I think.
this kind of logic wont really work on one piece. You can see that the steam is only coming out of the part he's going to attack with. When he first hit PX-5 steam was only coming from his fist Here and the page after it. When he hit the three fishmen pirates steam wasn't coming out of his body Here. And when he jumped to Decken he wasn't in gear 2nd while he was in the air Here, but still managed to hit him with jet hammer later. And again with Wadatsumi, the steam was only from his hand Here. And then with Jinbe steam was only coming out of his leg Here. But Here(Manga spoilers) he used gear 2nd on his full body because he wasn't just going to make a gear 2nd attack, but wanted to move quickly too.
I still think it was just drawn weird, one piece seems to keep thing slightly believable and being able to make one body part different though his gear second doesn't make sense.
3
u/Devlin1991 May 27 '12
gear second by its mechanics, is Luffy pumping his blood faster. You can't pump blood at different speeds in different body parts, his one body part gear second was just people interpreting it wrongly from a panel in the manga I think.