I don't see what Theatrics are giving up so much to train KO. Spending 10 skill points from a certain increase of your win record isn't really a tough decision to make. But that's not even the point. If KO was a skill that helped your gladiator fight better, as weaw put it, it would have been OK - but that's not what it does. I feel robbed when my fighter completely dominates the opponent, then he/she scores some mosquito bite hit for 20 damage to the head, planets align and "it's lights out". Or when the battle doesn't even start because the first hit results in KO. Where's the fun in that? Or where is the strategy?