i use my metal zone waza as the distortion in my setup.. im going through my old boss gt6, but disabled the onboard distortion and use the waza mt2... only thing i use on gt6 is the clean fender twin preamp,and gt6 eq..into return of oth heads.. i also use rack bbe362 for the jcm 900(dsl doesnt need it)... each head with metazone gives juicy thick tones that compliment each other without phase issues
going into return of 2 marshall tube heads, cabs give me that Takasaki Thunder in the East tone heavily..
heres my mt2 settings..