What’s the different between your shiitake-farms and others?
We sell our shiitake-farms at a fairly late stage of incubation, so have removed most of the wait and risk.
Others may sell kits or logs. Kits may require you to find a suitable stump or log (usually a deciduous Harwood like oak), drill your own holes, seal with beeswax and wait …and wait. It may take over 18 months for anything to happen if anything happens at all.
Ours are fully inoculated and close to fruiting.