Volume and angles....it is not that hard to figure out...Problem is you have to be able to substain your attack and not let up...Once you lose your rythm you might as well start over....Wrights defence is in the top 5 of all time IMO.....It has made him world champion,,,Rich and when he retires will assure him of a long life after the sport with no complications due to abuse...Hell if I was a fighter I wouldn't be worried about how to get through I would be more inclined on how to copy it