My favorite way to pass Rubber Guard is get a deep underhook, gable grip with my underhook hand with my free hand , stick my free forearm in his neck, stack, try not to collapse his trachea and block one of his carotid arteries instead with my foream and wait for his spirit to be broken/ wait for him to go for the obvious armbar and stuff that/wait for him to transition to a sweep and stuff that, then I pass gward and eat face. Roar!!!!!
What I'm more interested in is how to stuff the meathook or the rubix cube. I have a few ideas, but it's mostly flexible shoulder stuff so if anyone wants to chime in with some advice or if Ian wants to haha me, that would be cool.