I first saw Feitosa do this kick about 2 years ago. I never really cared too much for it but after seeing him rock Schilt with it I decided I'd try to learn it too. I about a month after I learned it I joined an MMA gym in my area. During the MT class sparring sessions, I can land this kick about 90% of the time on everyone there. Even the guys who are much better than myself and it seems I'm the only one who knows how to do it there (I've seen a TKD guy do a variation of it on the bags however). Our instructor doesn't teach this kick but it seems to be so effective against MT guys because they're all used to dealing with absolutes. If it's a HK it's an HK, there's no deviation, same with body kicks and LK's. So has anyone else tried this with any success? If you're unfamiliar with the kick I speak of check out Glaube Feitosa on Youtube.