There are several excellent reasons for open scoring. But there is one negative that cancels anything positive. The fighters should not know the actual scores of the fight. It takes away from the integrity of the fight. A great number of fighters would not have continued fighting so aggressively, knowing that they are ahead, with their brain damn near showing, the way Valero did. I'm afraid that if open scoring were implemented permanently, it would resemble the terrible fights of recent olympics, in which the leader simply runs once in a comfortable lead.