That's a valid point, Dimi. Grunge for example had some tones that were extreme output mush. Then again I never considered those tones actually tones, the sound was as bad as the music it was affiliated with IMO. LoL
The technique I described though is the same thing that will work for everything from KISS, AC/DC era through the mid 80's tones, Dio, Dokken, Priest, Maiden, on and on. Each would require varying nuances of the balance between boost/preamp and output sections, but the technique is relatively standard for anybody wanting the "full amp tone" experience that is USABLE. That's the whole point of the procedure, so you end up with usable tone instead of a garbled up mess.
Best results are usually with EL34 type of amps IMO. 6550 and 6L6 can work as well, just have to learn the nuances of how the tubes and amp designs each impart their unique color.
Sonic