At the NCEP operational center we run several wave models using the WAVEWATCH codes. The switch files and namelist values (other than default settings) for the different models are given below

multi_1 : An operational global wave model driven by GFS winds
  switch file : switch_NCEP_st4sbs 
  Namelist values :
    &SIN4 BETAMAX = 1.33 /
    &MISC CICE0 = 0.25, CICEN = 0.75, FLAGTR = 4 /

multi_2 : An operational global hurricane wave model driven by a blend of hurricane / atmospheric winds
  switch file : switch_NCEP_st2 
  Namelist values : 
    &SBT1 GAMMA = -0.019 /
    &PRO3 WDTHCG = 4.00, WDTHTH = 4.00 /
    &MISC FLAGTR = 4, CICE0 = 0.25, CICEN = 0.75 /

Great Lakes: the GLW/GLWN system caters for the five great lakes between USA and Canada. Settings for ST4 differ to account for specific wind forcing and dissipation designs
  switch file : switch_NCEP_st4
  Namelist values :
    &SIN4 BETAMAX = 1.55, Z0MAX = 1.002 /
    &SDS4 SDSC1 = 1.0, SDSC2 = 0.0, SDSBCK = 0.185, SDSHCK = 1.5, SDSDTH = 0 /
    &SNL1 NLPROP = 2.5E7 /
    &MISC FLAGTR = 0, CICE0 = 0.25, CICEN = 0.75 /