When an Instructor says use your ki to correct a student that maybe because that is the root of the problem and not the symptom. That is the dificult part of teaching. I find that some students will make the same mistakes over and over even when they understand the correction that is given. That is because I have treated only the symptom and not the cause. An example in my own training; I was trying to do I kyu from a club attack and it was always a struggle to get the correct grip and ukes arm in the correct position. Mr. Bowe pointed out that my footwork wasn't correct. Once the footwork was corrected the technique would just fall into place. So the symptom was the poor hand position but the root of the problem was the footwork.
So lack of Ki can be the root to many problems of doing technique.
That is a good point, but I don't think it applies to Ki in the same sense it applies to footwork.
I have yet to meet anyone who would benefit from a "use more Ki" criticism. If they knew how, they would almost certainly be doing it already, and if they didn't, this tip would be useless.
Also, I never seen a technique with a poor physical expression, salvaged by use of Ki. Have you ever heard anyone talk about O-Sensei's terrible posture?
That reminds me of "The Matrix": Ki can bend the rules, but it can't break them.
[Edited by Chris P. on March 12, 2001 at 06:56pm]