I have a MIM Std. jazz, though a Eden WT-800 and D410xlt, now i get good tone and all, but i have a feeling either the bass, or the tone is holding me back. At bass NW, i tested the amp wiht a 62RI, and i got tone to die for. i cannot get that same tone, i got great tone, but not superior tone. Will the 60's do the trick? or am i better off buying a new bass?