For several years, I’ve been on the verge of writing something about grading within Kinokawa. Stefan Stenudd has, hit all the high points, and saved me a lot of effort:
Therefore, though with some reluctance, I have kyu and dan gradings in our dojo, trying to make sure that everyone advances in grades in accordance with his or her advancement in aikido. That’s not rocket science, but it’s not a piece of cake either.~ Stefan Stenudd from, http://www.aikiweb.com/forums/showthread.php?t=22277
If you’ve been studying with Sensei Wirth for some time, you’ll notice a few obvious differences – things like our having changed to colored belts for kyu ranks ~2001/2002, hakama for dan ranks, etc. He also dives deeper into the details of performing higher level dan gradings – which is something that I don’t have to worry about.