Well, what are your goals? Endurance training gains are short lived enough that it’s got to be as close to simulating as possible. Unless you’re aiming for 40+ moves, I wouldn’t make the downclimbs super hard, it would be silly to fall on the downclimb. Look at Climbstrong free energy system articles to see what you want to progress regarding rest lengths, link lengths, increasing volume, difficulty etc. Each variable changes things in different ways.
I’m guessing you’re climbing in CCC/Boulder area is bouldery/cruxy to rests of different sizes, is that correct?
In your situation I’d set a V5 a V4, climb the 5, downclimb something in the V2 range, get to a poor rest at the bottom, shake for a preset time, then up the 4, and then modulate difficulty / rest periods as you see fit.