I had not heard of a tube call until a couple of months ago. A good friend talked me into building him one. I have heard some sound files and I am learning. I still have a long way to go though. It is way different than turning a short reed. I do like the process of figuring out how am I going to do this. I also tried teak oil on this one, I really like it. Thank you all for the positive comments and Mark at dbroswoods for the wood.