Xue Sheng
All weight is underside
But isn't part of being a good teacher setting standards, guide lines and requiremnets? I was shown by my (Korean) grand master how to wear and care for my uniform properly. It was understood that it was part of the art. And we learned it by the standards he set for himself.
Does the uniform make the teacher?
My Korean TKD teacher (this is pre-Olympic by the way when TKD still had close in fighting, joint locks and takedowns) came in one day and taught us in street cloths because he was running late. It did not mean that we could do the same thing, we knew better. We were required to wear what was required. He still was the same teacher, he still was worthy of our respect and he still was respectful of the art and his teachers. And he is still teaching and he is even back teaching in Korea from time to time. And if I were still training TKD I would still go to him and I would not care if he came in to teach in street clothes or overalls or anything else because he was a good teacher. However admittedly generally he would not teach in anything other than the required uniform but it did not make him any less of a teacher the day he wore street clothes.