April 27, 2017 Cheonjikido aikido sensei jack mumpower April 27, 2017 Cheonjikido aikido It's a honor to call Sensei Jack Mumpower our teacher, to empty our cups and learn Tomiki Aikido principles as to taught to him personally by Mr. Tomiki himself in 1958. My how things have changed. SMH. Cheonjikido