i do one rest paused set per body part, DC training
2-4 warmup sets depending on the bodypart
after my work set, that body part is toast.
now don't get me wrong, i wasn't having trouble gaining on a volume routine, but i did plateau for a while, so i switched things up with the DC. now i've been doing it for 6 months and still making progress, and i'm only hitting the gym 3 days a week.
i just don't have time to be lifting 5-6 days a week anymore
there definitely isn't just one right way to accomplish your goals