Jazz nylon is ready to close the box. I applied two coats of shellac for the top and sides. After glue the back, I also applied two coats of Nitrocellulose lacquer to the back. After close the box, I already trimmed out the over sized top and back boards for gluing process. The box showed pretty long time decaying tapping tone approximately 1-second as I expected. I am very happy with this result. This is the first time using the Lutz spruce for the Jazz nylon model. Tapping tone was pretty much the same as the European top.