Didn't watched tut. Ofc my opinion is just subjective, still….. I have opinion that Kyokushin Hiza Geri isn't worse than even Hiza Geri for regular h2h. I had exp with other karate styles based and Kyokushin based Hiza Geri = my opinion was, that most likely almost ( I'm not expert ) equal stuff. Even with JJJ and SD class for KB too. I maybe will later ask someone put example video on YT ( if they will have time for it ), or maybe I'll consider to make some video stuff after october… maybe. Then mainly with h2h approach or sports KB approach.