A must watch video for Aikidoka. Sensei Hikitsuchi Michio shows all aspects of Aikido from ukemi through taisabaki and beyond. He really has a great understanding of the basics and has a great method of explaining things. At around the 9.45 mark, he has some great detail on how to do tenkan. In particular, I notice that many Aikidoka do tenkan poorly resting their weight on the back foot rather than projecting through the front foot. Enjoy!