So we had this guy come in (3rd class, big mma fan) And he is an absolute unit, 100kg (244lb) and my instructor put me with him for a 10 minute round, I started in guard and swept him pretty quick with a hip bump. Arm triangled from mount which was all good. Then he asks 'Can we start in my guard?' Being a fellow bottom person I happily accepted wanting to keep practicing passing.. Didnt pass once! He overhooked my arm (I know, dont let that happen) Got the other controlling my head, I literally spent 8 minutes with my posture broken in this guys guard, he didnt set up any offense which is to be exp[ected on his 3rd class but, I tried my darndest and could not posture to pass. Any advice on this other than dont let them overhook your arm and control your head?