Don't know what the F is with the quick posting. Anyway, I like that kick because I have been practicing it for literally 30 years and can land it quickly and easily but it has almost no potential of knocking anyone out. It's a distraction to follow up with a low kick on the other side or a takedown. Since there is no windup, you can just snap it up there and BOOM. Okay, more like bing. The outside is better than the inside but harder to suprise someone with. Try both on a heavy bag and you will see. The knee does not like the inside version.