Sand Bagging

I'd heard about it, but hadn't seen it until tonight. I arrived at the UC Irvine Bren Events Center in time to catch the White Belt absolute. I saw some fairly poor, what you would expect from White Belts, BJJ. But I also witnessed some truly remarkable, great for Blue Belt, BJJ. Pure technical domination. What gives? Why were these guys still Whites? I guess the more important question is: Will they be promoted to Blue beore Mundials or will their Professors throw them into the fire with a new belt?