George S. Ledyard
I am really lucky because I get to work with real swordsmen in my own investigations. Of course they are not allowed to show me what they are learning in their koryu practice but I get a kick out of it when I can push one of them hard and some move slips out in the heat of things. I just smile and point out that they just gave away another secret; they always look very embarrassed. They really are very good at not intentionally giving anything away that they shouldn't. Anyway, I have skilled partners to work with on these things and it makes a huge difference in what I get out of my investigations.
Ditto, George. This is very true for me as well. I can't imagine a better group of people to train with that continue to give us problems to solve.
By the way, you're welcome to sample my group of "problem givers/solvers" any time.