I have never heard of turning a fly rod. I have heard of turning the reel seat but that is about it. There are a number of books out about making fishing rods from fiberglass or graphite rod blanks and then there are bamboo fly rods and the making of such. But you do not turn the bamboo fly rods other than to put the thread on and maybe the finish. Bamboo rods are a double taper staved project I believe. Google the name Powell and bamboo fly rods and see what you get. There used to be a well know bamboo fly rod maker in Yuba City, CA. Powell is from Chico, CA. The name of Winton also rings a bell but I can not remember why.
Hugh