Adair, I like the flowers of the kogetsu. The photos I have seen of it display nice white and a red that is deeper and less pinkish/purple with lots of variation in the coloration pattern. When I think of satsuki, that is the typical flowers in my opinion.
The variety seems rare. Rick Garcia had only one kogetsu that was out of my price range at the minute. I did purchase a Goho-no-hikari from Rick that ships next week. I also bought a Shin Nikko from David at
http://www.satsukibonsai-en.com/. Both were repotted last year so no root work should be needed this season, just styling and growing fatter. And a few blooms of course. Add these two to our styling tasks next time you are at my house.
If you know a variety that is similar to the kogetsu flower and a source that ships, please share the source.
Thanks