I've been playing for the last few months and have recently started getting to a point were I wanted to mess around with the tone of my bass. It seems to me that the tone knob just doesn't do much at all. I played an MIM Jazz the other week and it seemed like slight adjustments to the tone knob made a world of difference in comparison to my VM. Now I was playing on a larger amp (but the same brand and roughly the same settings that I use at home). Is their something wrong with my tone knob, or should I just upgrade to the MIM?