Shin Lock off Lockdown Top (MTS 27). Anyone else getting this?

So I started playing with the lockdown top position as shown in (MTS 27). I havnt been getting there off kimura defense but started using this as a defense to 93 guard (which is the primary half guard position at our gym). After I get the lockdown in from the top ive found that before I roll for vaporizer they are already tapping. The only thing I am doing different is gable gripping their thigh and sitting up (applying pressure to the ankle and shin area). ive gotten this about 5 or 6 times in the last week and Im not sure if its because I just have really pointy shins and am pushin 185 right now or if its legit. ive only tried it on blues to this point.

Anyone else seeing this?

I can visualize what you are saying and I don't doubt you... Shin Locks are nasty!

How easy is the vape roll from the top lockdown?

The vape roll feels a little awkward at first to me. If the guy is shifting his weight away from the roll or trying to get to his knees I usually take the back. If the guy is turning back towards me it's pretty easy to hit.

I've tried a forward roll from top half which transitions to back control but for me to get that live I have to practically let them up to shift their weight onto one hip, then I roll controlling that hip. I felt like I was baiting them to take my back so I stopped trying it, is there a similar mechanic here in the roll to the vaporizer or am I totally visualizing this wrong?

http://www.youtube.com/watch?v=G1tIzC2FIfg

I thought we were talking about a top position lockdown? Now I'm confused.

Top lockdown while the leg is across the body. Like at 3:05.

I get it now, thank you.

sometimes with an opponent similar to my size, if i can get the lock down from top control i will take head and arm on the opposite side of the lock down and fall over to my hip on the lockdown side and tweak the guys foot all up n sideways from there...been getting some taps with that, idk how well it will work with a bigger guy or how high percentage it would be on very pain tolerant people, but its something ive gotten a few with.