*EDIT* I've been informed that this is apparently the "100%" sweep referenced in Eddie Bravo's 10th Planet material. I've read about the 100% before but the descriptions of it never matched my visualization of this technique, so I never put it together. Apparently I've been using the 100% for years.
I discovered this sweep by accident a couple of years ago and have since then seen it in several different places, however I have no idea what the common name for it is so I haven't been able to find any videos of it when I want to recommend it to people. So, here is a sweep from a failed guillotine attempt: