Years ago I bought a bundle of 25 slats from Franks, beautiful stuff except every bow I made from the stuff had a bamboo failure, after 7 failures I burned the rest of the bundle.
I bought another bundle of 25 from Franks, this bundle arrived soaking wet with thick mold on every slat, more for the burn pile.
I believe it was Badger who said he lived close to Franks and drove by to hand pick his slats, he mentioned that mold had been a problem for Franks.
If the local bamboo patch I once cut from hadn't been bulldozed I would cut you some excellent mandrake Mike, but alas, it is gone.
When the old man died and the land was sold the new owner offered free bamboo to anyone who wanted it, I didn't see the ad on Craigslist until 6 months later. When I called he said the patch had been bulldozed but I was welcome to see what I could salvage. This patch was about an acre and had trunks up to 8" in diameter.
I got a few nice poles out of the burn pile but just gave it away to a friend.