Tbh no one ever developed as much mass as Dorian, he had more muscle mass than anyone, due to his high intensity approach
But was it intense as other peoples training
I think Dorian had the right approach, he didnt push every set to the maximum
His working set of incline press was 6 reps with no forced reps
His genetics were what set him apart as well as his consistency , he lived and breathed bodybuilding