If he really was cheating I believe it's likely he was using a program to alter his recruits hiddens RNG. I remember checking his roster once when he had 1300 wins and I took notice that every single fighter on that roster to a man had maxed show hiddens (chin, sub defense). Sneaky. It can stay under the radar for a long time but obviously have an enormous effect. He didn't otherwise use any methods that were groundbreaking or particularly intelligent to run his camps.