Mark Heinzer is a black belt under Checkmat ( Viera Brothers, Lute! ) and is sponsored by Shoyoroll. I spent about a half hour with him at IBJJF Pan Jiu Jitsu Championships on Sunday after the black belt finals. Nima Moridi ( blue belt competitor, One World Jiu Jitsu ) joined me on Monday to go over Pans and other news in Jiu Jitsu and MMA