Use the speed of your reps as your guide. If they slow down within a set or from set to set, rest a little longer between sets.I recently started doing 3.0 and wondered, if some of you also got a slight problem with the autoregulation aspect. Due to it not being too cardiovasculary intense and more on the strength side of things, I really find it hard to tell, when I am ready to go again… and sometimes even feel like I somewhat miss a more defined structure…
Hope that helps.