Instead of starting a new thread, I thought I would post this here.
I was just reading Jiu Jitsu Magazine Oct/Nov issue#10 and at the back they have Fabio Leopoldo showing a bunch of techniques. One is called "A counter to the lockdown" on page 82. There are step by step pics of how to turn it into a calf slicer by simply sitting up and back on the legs while on top.
Only problem is, the lockdown isn't put on properly. The lockdown has the inside leg wrapping over and the outside leg hooking under the foot. Just thought I would mention it here to see if there are people who do the lockdown that way?
But then below that, they have two more pics showing another way to unhook your foot, and in that series the guy has the lockdown put on the way I learned it.