Well I just finished building my new 5 string. It has a single Music Man pick up. I played it for the very first time and I kept getting cramps in my "picking finger". I remembered why I sold my MM Sterling. I am thinking about adding a Thumb Rest instead of selling my new bass. I have a solid Mahogony body and all chrome hardware. I do not want to put some cheapy plastic thumb rest on it. Does anyone have any unique suggestions? Thanks for the help!