I'm pretty confident on that Haki part. Twice I worked myself to near-blackout over normal things (one when working out and one trying to get to school on time) and I can restain myself on a lot of situation. I would like to believe I would do good on Haki side, as it is just raw will focused on a single (or multiple) thing(s).
So, I choose joining that damned crazy crew. I love chaos.