I stumbled upon this concept when I was playing in a very deep trance, focusing on breaking apart the circle in every way possible. Cough, cough... No I'm not tripping, I'm just speaking gibbrish. Anyhow, enough with the fun stuff, here's the tech talk:

-Hybrid stall switch-
As you know a stall switch can exist either horizontally or vertically. They share a common factor with pendulums in that they occupy the space of a half circle. Additionally a stall switch as any other fragment of a circle has a driving style, you can isolate them, circle around your hand, cat-eye them etc, even if it's just for half a circle.

The other day I stumbled upon a hybrid. I will try to get a video of it asap. The basic idea is when one hand stall switches by moving around the poi head, the other makes an ordinary circle, creating either a fragment of a classical hybrid or a fragment of opposite hybrid. In my case an opposite hybrid.