I'm currently looking for a bass guitar for home recording. Found one set up nice at a local shop. When I asked if he sets them up at purchase, he told me that it wouldn't matter because basses need to be set up every time you change the strings unless you use the exact same strings all the time. It has been my understanding that you don't mess with the truss rod too much on guitars. Are basses different? Where can I get the tool for rod adjustment? And how can I check the string gauge of what's on there now? The bass is in good shape and the action is like butter,a good find. Any replies appreciated. Thanks. Pj