I do understand everything you said about the throat anatomy, but what I can't do is figure out if I am indeed singing the way I should be, what is the physical feeling one would get while screaming like this? Where should I feel that "scratch"? When I try to scream like that I feel like the distorted sound comes from the throat just a little above my adam's apple, maybe the opening of the epiglottis? I don't know what it feels like to scream through the soft palate, do you feel vibrations in the upper part of your mouth? As if you were making that rawrr sound people in comedy movies do when they want to have sex lol
I will definitely start warming up and warming down though, because I am putting a lot of stress on my vocal chords lately, thanks a lot!
Oh and by the way, do you think the scream sounds powerful like that because of studio editing? Not the quality of the scream though, just the volume