Y’all should build one of Nelson Pass variable distortion aka negative feedback machines, to better understand your own ear / brain preferences for……distortion…
Or a Music Reference ( Roger Modjeski genius RIP ) w 3 levels of negative feedback, careful level matching and you can hear for yourself what more negative feedback ( TIM ) does to image depth… See Opus 3 disc on image depth.
IF ya can’t tell i am in the Measure AND Listen camp, the interesting overlap a wise poster above mentioned…..
Carry on…Best to all in music
Jim