Spine Lock

Hi,Which kind of Spine Lock/Spine Stretch did you know?

For the term Spine Lock I understand not the commonly neck crank as a Cross Face,Face Lock,Crucifix etc.But a lock of the lower back or spine column as a Boston Crab,Guillotine/Twister,Camel Clutch.

For example I found in the Mario Sperry VT 1 series volume 3 a type of Spine Lock present also in the Erik Paulson Quick Kills tape where Erik called it Spinal Hip Lock

I've only tried the twister, i think my life would be complete if i submitted somebody with a boston crab. I would start wearing pink tights and slicked back hair and spray perfume wherever i went like Rick "The Model" Martel. whats the spinal hip lock like?

My very first match years ago I got my first submission on a Judo guy. It was a half boston crab. He grabbed the ropes (pancrase style). Then I finished it with a neck crank. It was crap, we were all pretty bad at grappling back then. I mean, I won often and I sucked!