Just a short question:
I think I just found out how one of my physically strongest partners has been shutting down my guard game a bit. In addition to being much stronger than me (MUCH), he also has several months training experience.
This guy is simply pushing on my hips with stiff arms (with both arms), both from the closed and butterfly guard.
I'm guessing that my solution would be more hip movement and better pummeling.
That way, my hips won't be a stationary target and his pushing leverage will be lessened or killed (this is no-gi BJJ, by the way). But maybe you guys have something to add?