I think there is a problem with some of the weight classes. It's easier to become a multi-weight champion if you are lighter as there is only a couple of pounds between each class like from Light flyweight all the wayup to light welterweight. From light WW up to light heavy there's around 7 pounds difference then suddenly a 25pound difference up to Cruiser. SO if your a Light Heavy it would be more difficult to become a multi weight champion as opposed to the 3/4 pounds difference in the lighter weights