Well, if you wanna become a shredder i would suggest you to practice scales and excercises many hours a day, that's what i do... also using more than 2fingers might be helpful to, atleast for me...
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US Standard Fender Jazz, Status Series 1 5 string, customised Encore "stealth" Precision bass, Markbass Little Mark 2, GK Neo 112 & GK Neo 212
shredd men.. not sherdd..
you gotta practice a lot to become a shredder..consistent practice, and youll get what you want..try some lessons and also try searching to other threads here..youll get some useful info here...