The singer of Dead Poet Society is insane. I feel like he perfected the M2. You can hear Jack Underkofler singing in falsetto at the same time and another time he just sings the same note with the same brightness but as if he openned everything he can open around his head and in his throat. Listen to their song „I hope You Hate Me“ for example. This and his cry and shout (?) gives his mixed voice so much live that might lack if you sing in falsetto.

According to AI Jack sings in M1 mixed voice „belts“ (what the fuck is thyroarytenoid-dominant) because he was trying to replicate Myles Kennedy in Alter Bridge? You can‘t tell me that while his mixed voice has such a close timbre as his falsetto. What do you think?