I have a friend I train with-4th deg BB in JJ,(not BJJ) used to do Hung-Ga, collegieate wrestler, HS Football,weight lifter-basically built like a brick sh1thouse.
So I, like Ron had the same theories-"I'll use my horse" "I'll drop the elbow" "I'll this, that and the other thing.." yep. So we got on the floor. I tried it all, and then I said,"Yeah, well, I'm not hitting you hard." (cuz the elbow, well, that'll really fuk yu up.) so he says,"You can go harder" so I did. I (tried to) hit him with the elbow, and everything else. Then I went harder. And harder. Nope, Nothing. Nada. I am a firm believer. I was down and on my back so many times, I had road rash.
Last week, I'm at my Si-Hing's place and one of his guys is a greco-roman wrestler. He showed some things that drive this point home even more.
Basically, what I and it seems everyone else is saying is that you really and honestly need to grab someone who has real knowledge of this stuff, and then get on the mat and try. That is the only way you will ever know what works and what doesn't. Helz yeah it hurts, and the ego hurts even more, but that's the easy way.