i was reading a book about judo and there is part there about Kyuzo Mifune's yoko gake. it is said that Mifune's(10th dan) yoko gake is executed by gripping both sleeve. the yoko gake that I know uses the standard grip.(one on the sleeve and one on the lapel) there is also an illustration and the thing that i noticed is that tori's foot is blocking uke's foot not on the side but in front. the strong pull to the right side will drop uke on the right side of tori. any variations on this throw?