Very interesting. Got any pics of said logs in varying degrees of flush?
What are the light moisture requirements?
I grow [bleep] using oak logs. You use green oak logs and drill 5/16" holes every 6" the length and circumference of the logs. You buy dowel pegs that are inoculated with the mushroom spoors and drive them flush with the surface of your logs. Stack the logs off of the ground.... I use 4 concrete blocks and stack the logs log cabin style. It's been taking mine a year or a little longer for them to start producing. I don't get any during the coldest months or during hot dry weather they can appear any time during the rest of the year. I've gotten as many as 9 flushes a year and expect at least 1 year of production for each inch of diameter of your logs.
I cut that are 6"-8" in diameter about 5' long and one bag of dowels will make 10-11 logs for me. I've filled a plastic grocery bag many times from a rack of logs as described.
To harvest you cut the cap free from the stem leaving the stem attached to the log. They are a solid meaty mushroom. If you let them grow long enough the caps can get larger than your palm. I have battered and deep fried them and made mushroom sandwiches with a few strips of bacon and a slice of tomato. Mmmm Mmmm good.
The word "$hitake"got bleeped. No, I never bothered photographing them but I imagine if you google them you will find lots of photos.
I'm located in central Mo. so our humidity is usually between 50% to 95%. I have mine in a lightly shaded spot... think of a city park with scattered trees.
I have not looked at my logs for a week or so but with the rains and cooler temperatures there should be some ready to pick.