Peter A Goldsbury
...Well, in my experience it is the middle dan ranks where all the trouble starts. The most difficult ranks are 3rd, 4th and 5th dan. If you relate this to the supposed equivalent skill level, the lower ranks are still too low: you do not know enough, whereas in the upper ranks you have gained a certain maturity. You know all the issues and it is most likely at this level that you have gained the humility that is essential for you to see what your skill level really is--and accept it. However, even 5th dans need to be nurtured, to feel that someone knows their problems and is there when needed. Many very senior shihans cannot play this nurturing role effectively...
This explains most of the complexities here in Malaysia.
Thank you, Prof. Goldsbury.