Artemis BJJ (MYGYM Bristol), Can Sönmez, Bristol, UK - 03/03/2017
I went with the bump and frame to butterfly, a relatively basic technique tonight. This isn't an option I often go for, but I do regularly use some of the principles, as quite often I'll end up trying to dig my knee through.
First of all you need to get their hips in range. It is more difficult to land this escape if they're still upright, although in that case you would probably go for something else. Knock them forward with a straight up and down bridge, pressing your knee into their bum. As soon as they're horizontal, frame your arms into their hips and do a powerful bridge (heels as close to your bum as possible, pushing high, on your toes).
Stiff arm into both their hips, so that when you drop your hips back down, the space you created from your bridge is still there. Make sure that the power comes from your hips, not your arms. You arms are just meant to be there to support the weight, like a shelf, not provide the power. Bring both your knees through that gap: having been balanced on your arms, they are now balanced on your shins. You can then kick forward with both legs, using the momentum to also sit up. This should put you directly into butterfly guard, where you can immediately sweep them.
If they are still upright, you can still do it sloppily by jamming as much of your knees as you can into the space you create. It ends up being one or one and a half knees, knocking them off to the side at best. Still, that can work too, and will almost certainly be better than staying stuck under mount. It can also potentially give you a chance at moving into x-guard or something like that, circling your outside around to press your foot into their hip. A double-shin sweep could work from here too.
Teaching Notes: I should try angling this more, as Hamza uses a variation very effectively where there is an angle to how he is framing his arms. He then uses quick bumps to get his legs into play, rather than a straight up and down for inserting both knees into butterfly. In sparring, people were definitely using it more, I couldn't simply drive up into high mount as usual. That's because rather than defending their neck carefully, meaning I can drive my knees past their elbows, they were stiff-arming into my hips. That made for an interesting challenge I wasn't used to: the way I tried to beat it was by spider-walking my hand inside the arm to make space for my knee.