This is a new variation on my Roots models. These guitars, named with a T after the regular modelnumber. The T stands for torrified and I use torrified sitka spruce tops on these guitars. This gives the guitars a more old sound as if they were alredy played for ten years. Incredible balance and a lot of over notes. Together with the sapele mahogany back and sides it gives these guitars a balanced sound that is about the best I have ever made. The R29T is a 000 size.