Wow, amazing! How do you keep it during the summer dormancy? Do you keep it moist or dry? I'm guessing that in the nature, it is probably moist in the summer. I think one person in Japan who has kept it longer than 5 years were putting about 50% of organic materials (decaying fallen leaves etc), and adding additional organic materials every 2-3 years (in an attempt to feed the fungi). I wonder if asymbiotically propagated ones may develop less reliance on the fungi?