Heavy And Assistance Day Routine

Hey coach,

I remember reading in the older livespills about a year ago about a routine that your friend was doing and it seemed really interesting. The idea was that he would do a heavy session for a bodypart one day and then more isolation and pump work the day after.

Do you have any thoughts on this idea in terms of arranging the body parts, rest days, training percentages?

I always thought the idea was cool to try out at some time, just wanted to know your thoughts.