Yes I’m with you Hyoho, ‘black belt’ is a pretty low grade if the suggestion is that it constitutes ‘proficiency’. After all, it’s about, what, 4-6 years of practise. Would you be proficient on piano or guitar in 4-6 years?Do you really think so? A black belt is a qualified beginner. I was 6th Dan Kendo, 5th Dan Iaido before I moved on to more Kenjutsu. The kendo bled into it. Battojutsu was never a problem with similar fundamentals.