GMaroda

There is something to be said about shadow-aiki. I just wouldn't overdo it for fear of imprinting improper motion. That said, class would be where you fix those issues, right?

I can't tell you how many times I did my dojo's basic irimi nage by myself like a robot. But it helped me when I actually had someone. But, I also had to be aware I was only getting one small part of the technique.