So I switched from medium Fender nickel-rounds (45, 65, 85 100) to Fender 9050L flats (45, 60, 80, 100) and now I have a lot of buzzing on the D and A strings in particular. The buzzing starts around the 6th or 7th fret and increases as I go up the neck, peaking around the 12th fret before slowly phasing out as I reach the end of the fretboard. The bass was set up perfectly with the medium rounds (nice low action, straight neck, no fret buzz anywhere) and I was hoping to not have to raise the action too much, but I'm guessing that's the answer? More relief and then raise the saddles too? Thanks!