I have a USA P-Bass that I love, but the action is rather high. It seems like I'm fighting with the strings unless I'm playing something real slow. I know that I can easily adjust the bridge height for each string, but will I also have to make truss rod adjustments if I do that? Is there anything else I need to keep in mind if I am attempting? Probably a noob question, but I haven't done any setup work before. Thanks!