After 3 years of intense bowl turning I am at the point where I feel I have the design form done but still struggle with 2 things, design of the bottom and signature design or process. I am really interested what other turners think and are doing? I am still not happy with a design I have been working on. I feel the bottom of the bowl design could be the final determination of buying a bowl? I am sure this probably something that changes and develops with experience and tastes of individual turners over time. I have decided on a signature and type of wood only on it but may incorporate location where wood was harvested. Any thoughts greatly appreciated.