That may be true. However, back in my competition days, back kick and back hook kick weren’t low percentage techniques, precisely because I trained the hell out of them. But that was, of course, in the context of tkd sparring. I wasn’t training to be an mma fighter or a kick boxer. I trained those “spinning” techniques knowing that most of my opponents’ bread and butter was going to be round kick, and my spinning kicks perfectly countered them. It was a psychological advantage, too, because it essentially took away their best weapon.
Again, I think most tkd students aren’t training to fight. Even most of the ones who believe they are training to fight aren’t.
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