Had my 4003S set up a few months ago, but recut, etc., and been using D'addario NYXL 45-100 since. I'm pretty much a pick player. Recently joined a new band - one set 80s pop (Thompson Twins and so on), one set 80s funk/disco (Narada Michael Walden and so on). Found the current strings a bit bright, so considering some flats.....maybe Rotos? They do a 40-100 set, so they'd fit the nut slots okay. Used to use Fender flats, but been there...... Ricky and flats for this stuff? Or stick with the NYXL's and use the tone knob? Incidentally, I do find the D'addario strings a little floppy.....or maybe I've just been listening to too much Roger Glover of late....!