Advice for defending the Electric Chair?

So I'm smashing everyone with halfguard in my class (gi, cough, cough) and in particular, once I get the lockdown established its either Old School or Electric Chair for sure (except for another Judo Brown Belt who outweighs me by 60 lbs or so -and then its the mini stomp to butterfly to sweep). Another Judo Black Belt happens to be a 4th degree BB in Tae Kwon Do too and is as flexible as they come -not to mention 6'-3" with all leg. I put him in Defcon Control -head in -DEEP Electric Chair and he still wouldn't tap. Its like a front kick stretch for him... but! I nailed him with the sweep into Side Control effortlessly (again!). Its really a money move. He asked how to defend it and I have no idea. No body has come close in my class to being able to stop it; and they haven't even tried to put me in it themselves to really feel it myself "mid-game" -so I've never had to try to really defend it...

What should I tell him? -Besides not to let me get him in it in the first place?

Grab the head, push back into the person,

I guy I train with loves the lockdown to electric chair. I've found I can shut it off by keeping head and arm control (as if working for a D'arce choke), sitting on my free leg so that there's no space, and pushing forward into him to make the old school sweep more difficult. But not too much otherwise you are vulnerable to twist back style sweeps!

Kick the non-lock down leg back as soon as they feel the hands on the leg. At the same time either get the under hook on the non-lock down side arm, or use a hand or forearm on the neck to prevent you from continuously chaising the leg.

If he's flexible, he can balance ontop of you and force you to wushu <---- is that how u spell it? Which will take u to the dog fight. Here is a picture of me doing a failed electric chair against all American wrestler Gabe Wahab. http://29.media.tumblr.com/tumblr_ll...vhk5o1_250.jpg

I would go for a capoeira pass if I was in the lock down before getting into the electric chair.

balancing on top of the dude like piper said .. been there quite a few times. also getting good with darces and guillotines seriously impedes the electric chair.