I grade outside of my dojo in the main JKA grading (about 5 clubs take part). From what I can gather, Kihon carries a huge amount of importance, the kata the next (just the performance) and then the Kumite. This may not be correct but from listening to the comments made to other students on why they didn't pass etc I am lucky in that I am physically fit, did Karate for several years as a kid and have good balance/co-ordination. I think I have the system within myself now to string together moves I know with ease. The difficulty comes from the bunkai, the smoothness and actually understanding the Kata. For me it really is about the journey rather than the destination, but by learning quicker I can see more on my journey than I would be able to otherwise