if bodyparts splits work for anyone it is actually proof they are juicing
such high volume yet low frequency are counterproductive for natural
i found out myself and saw a lot of people in the gym find out
A closed mind is a terrible thing.
You may respond differently to it today.
Not necessarily high volume,but more reps, with a focus on squeezing and stretching the muscle you are training............and gaining on a split routine hardly means a person is on drugs.
Doing a 5 x 5 routine works great for adding strength and size,but your body will adapt to it and stop responding after a while just like it would on any other type of training.....this is the time to switch things up.