ShiKage's Big Bang Paladin Build

Hah, I make my first character post-BB and I've already made an error. That error being that I completely forgot that CO existed! My swordsman in Zenith is at level 28 with PS and SB already maxed. Considering CO increases skills by two, should I leave HP Max on 8 and dump the rest of the points on Iron Body? Given what I've seen from enemies and their damage, I'm not exactly worried for my survival until the point I get 20 CO. Also, is it safe to say that we're at the consensus of GS>SB for second job?

EDIT: Just recalled that there's a free SP Reset scroll on the 11th. It seems like a waste on a 2nd job character but I want to drive for perfection this time around. And of course I have no drive to remake it. Also it's not like my other characters need it either.