Margarito and the wraps

[greynotsoold]

Interesting post by Cressa121 on the "Dempsey; 3 years without a fight" thread regarding the effectiveness of plaster of Paris handwraps. Apparently, in an experiment in 1964, it was determined that after a few punches the plaster would crumble inside the gloves and do more damage to the guy throwing the punches than to the guy catching them.

.....I would ask how that study was conducted. Because if that was "fact" then why would trainers continue to load their fighters wraps

That's something that has me wondering: if, in fact, this is happening, how widespread is it? It was, what, nearly 30 years between the Resto and Margarito episodes? Were these the only two, and they got caught, or, as seems to be somewhat of a consensus here, Margarito has been doing it all along, was he the only one? I'd bet that over the course of his career he has had more than one trainer, so was it his idea? Did these guys do it with other fighters before and after Margarito?
In years around this, I've seen trainers pull all kinds of things to give their fighters advantages (real or perceived) even in sparring sessions. There are a ton of less than scrupulous characters around so I guess anything is possible.