Consider my comments about kicking and the multiple mechanisms and postures necessary to perform them correctly without injury. I too like you sir, demand everything is performed correctly. Once a student asked me if I was too demanding. I told him that if a technique requires 10 things to be most efficient, but in the process of applying them in stressful reality you screw up 5, you can still survive and be effective. However if in training I only demanded 5, and you easily screwed up 3 or 4, than you got nothing.
As an example, when all of the mechanisms are in play, if you were to charge to grapple with one of my students in the midst of performing a roundhouse kick, you would not knock him off his feet or balance. He would either complete the kick, or bounce back into a strong stance.
There is an obssesion with speed in most people. Wanting to be fast is normal, expecially in the arts. Somehow Kenpo has acquired more than its share of 'need for speed' over and above basics. This is mostly because 'basics' after the early sixties were never consistently taught by Mr. Parker, instead switching to a conceptual model to allow him freedom of movement between his many schools and students.
Basics require a knowledgeable teacher, pounding and making constant, and sometime small corrections consistently every class. This was physically impossible, so 'basics' died in favor of 'concepts.' Therefore, in general, no one actually knows them at a finite level. Instead the business of kenpo switched to teaching 'self-defense techniques, forms and sets' conceptually over the finite basics needed to support the physical actions.
Students always want to be fast, inspite of the fact in no physical activity do you began learning this way. Every physical activity starts with learning the basic movements slowly and correctly, with speed building a little at a time until the movement is inculcated and 'natural' in execution - except kenpo.
I pick my students carefully, and anyone who does not have the commitment to learn correctly is rejected.
As far as sanchin, there are various versions and rather than step on someone feelings, I'll just generally say the 'knee in' position in male practitioners is acceptable on a limited basis, but requires a compensating drop in height. It is also NOT designed for mobility as some have used it. Dynamic tension of this type can exacerbate other subtle problems with larynx, blood pressure, heart disease, and stroke potential over time.
Marlon, keep doing what you're doing sir. As your knowledge improves pass it on to your students. Do the best you can do, and when you can, do better. The 'idea' is important. Too bad more don't have it.