You are right, even his closet students did not or don't practice
O'Sensei's Aikido died when O'Sensei died.
Another Classic Dave.... Of course it did.... I don't have his aikido, looks similar, but like most, it is mine....
I cant see how it can be anyone else's do you?
Just like learning to write, everybody starts off similar, some end up with scrawl, some end up with beautiful calligraphy, mine is very eligible, neat and tidy with a flair to it.... but practical.....