Ther are not many people growin boababs I am afraid.
General recommendation for succulents is to water when you see new growth of the season, and not getting the rootball all soaked directly.
Come spring here, I bottom-water my succuluents, just giving them a very thin layer of water on a plate and effectively inly allowing the first cm of the pot get moist. Misting the tree is also a good way. The roots need to get the idea of water first before being really wet.
