Right, my characters have previously been accused of being un-Jedi like. I would say that is accurate, all my characters have a floor of some kind and they lack the calm of prequel era Jedi.
Now to the case in point:
1. Flax has already stated that he does not follow the chivalric code, because it's fake. (I am working on my own honour code, which warriors are required to follow but every mercy will be counter balenced by an expediant.
2. Assassins are the lowest form of life.
3. The only reason Flax consented to a duel was because the alternative might be some dead Alliance soldiers, or the assassin's escape.