Thanks to the advent of digital cameras and digital video technology, I have been able to regularly video myself doing kata so I could play it back later and see what I could learn about where I was at at specific points in my journey.
This video shows me doing Naihanchi Shodan each year since we started training at North florida Aikido's dojo. I have to say, I haven't progressed as much as I would have liked. I see myself repeating many of the same flaws despite the 6 years that have elapsed!
I think I'll continue this process for the next 20 years or so and see if I can fix those flaws!