Hi, I bought a Carvin LB75 fretless last year, and have always been disappointed by the lack of 'mwah'. I've put roundwound strings, and the action is set pretty low already (lower it starts to buzz). I'm not a specialist of fretless, so is there a possibility to get more mwah by having the bass setup by a pro? Do you have some other tips? Or is this proper to this bass or Carvins fretless in general?