Alright, just something thats been bothering me. My knowledge of BJJ says that when you have your opponent in a secure chokehold and apply the right pressure( which isnt that much at all) no matter what size opponent they will pass out. Ive learned that it only takes like 3.8 psi to stop the bloodflow through the arteries and veins in the neck. Someone was trying to tell me that if they have really big strong neck muscles you wont be able to compress their veins and arteries enough to make them pass out. I just wanted to prove to him you can flex your neck muscles all you want but that isnt going to keep your arteries and veins from being compressed.