Winter is a good time to harvest the boo as there are no snakes and spiders after frost. It would be easier to put out condo's without others taking note of the locations as you might have the lake to yourself-cold you know. Seems like our lake is more calm during some of the winter months, very calm at times which would make it easier to lay out a patch.
Heres a question for ya that might not have been discussed yet:

Q: After frost the bambo leaves are brown, does it matter to harvest now or in summer (all your pics they are green) respective for longivity and cover effectiveness in the water?