Michael Hagedorn, and Andrew Robson spoke about their experiences with Chojubai on the bonsai wire podcast recently. I think a couple of the other fan boi's might find it interesting as well.

https://open.spotify.com/episode/4AC6Z9 ... l_branch=1
I thought same but I'm not so sure anymore. I believe the virus may very well affect the health of this particular clone. It seems to have problems with vigor after a few years and starts losing whole branches. I am not going to propagate it anymore. I have however crossed it with both Ch. japonica and the white ''chojubai.'' These are all very healthy, virus free and willing to grow - so far....