I'm currenty using an Ibeenhad GSR200 4-String. I am now in drop B and I'm gonna have to put a set of 135's on it and file the nut if I wanna continue to use it. I've decided I might as well just take the money I'd invest into modifying it and put it towards a new 5 string. I have demoed the fender jazz and it sounded muddy and weak compared my ibanez. I'm not much of a bass tone guru, and I really don't know what kind of bass sound sits best in a metal mix. I can get a used MIM Fender Jazz for around $300-350. Is this the best option or should I look elsewhere?