I thought I would do some practice on calls with the Robert Sorby texturing tool. The tool I am using is the small version. The calls are not finished, just trying on different types of wood. So far Padauk and Maple seem to work. I tried Marble wood and it tears the wood. I turned them at 390rpm's than sanded to get the very sharp edges removed. I turned the wood to rough dimensions, textured, than turned up the speed to develop the remainder of the contours. What you actually do is texture than using the EW detail tool created the coves and beads, this enables you to get sharp corners as long as you cut below the texture.