Hi: I'm new to bass after 23 years of guitar, and while I am having tons of fun playing my new SX bass, I am bothered by a ringing overtone when I play. I THINK it comes from my fingers sliding and lifting on and off. Two questions: 1) Is this normal? 2) Can I make it go away with new strings? The bass came with roundwounds. Would flats make this better or worse? Any help would be appreciated!