First of all, no one is asking You for anything. A simple, "Their called Bollinger bands, a study already exists." or if you simply don't know what you are talking about, don't have to say anything. I don't know what they are because I don't use indicators like that, but for you to come on here acting like you do and then to be smug about, I don't don't even know what to say about that. "SMA deviation channels" isn't a thing. If answering questions on a forum for answering questions is an issue what are you even doing here?