When I turn HFs, I almost always do them twice turned. The few times that I have turned a burl HF, it has always been dry wood, thus once turned. I recently came upon some maple burl from a freshly felled tree. Can green burls be twice turned? Is there a way to preserve the bark around the rim as it dries? Or, should I just turn once, start to finish and let it dry slowly once complete? Thanks for the feedback.