Dear Jacob, This is exactly how H. calyptratum grows in the wild. I have seen mature bulbs growing on moss covered trunks of trees in the forest in Brazil. The roots formed extensive thick carpets about two feet long and at least one foot wide if not bigger. So looking at your picture I think your plant will soon need "repotting" in the sense to attach its piece of cork on a far bigger one. Your method looks very sucessful indeed and thank you for sharing! Uli