No Wrangell....
I didn't even read my original post.... short changed on time.
However, your words are right.
My usual recommendation is to start out with steady state and ride it until it's no longer optimal.
All of my programming works like this.
Keep it simple until simple stops working.
Based on your experience with clients, after a client has had some prolonged experience with steady state, what factors do you look at to determine that steady state is " no longer optimal " - I assume this is what you referred to earlier as ' a point of diminishing returns ' - and that it's time for some other form of cardio ?
" Keep it simple until simple stops working " - couldn't agree more btw