I bought D'Addario Chromes (flatwounds) for my Essex fretless. I put em on and they all sound great, except for some reaosn the open E string kinda sounds like it has phaser on. It isnt a deep booming string, instead kind of a "zoom" idk its weird. When i fret a note it isnt very noticeable. My fretted 1st and 2nd frets almost sound lower than the open E! Wats up? Will this go away as they get less new?