I like techniques that can be combined to give my opponent a choice between two bad options. This video by Black belt instructor Jay Bell of Gracie Farmington Valley shows us a great way to to get a half guard sweep.
Basically, its a sequence that goes like this. You’re in half guard, you try to take his back. He blocks with a whizzer, you sweep him. If he bases out or simply doesn’t block with a whizzer then you get his back anyway. Seems like a great way to go to me . Check out the video.