For getting max fitness and adaptation to this system it is really important to keep the chain going….I would recommend something done on Sundays, even if only an empty bar. Experiment, though, find out how your athletes bodies and minds react to this system. We have found that mondays (especially am) can be a bear if ones just lays around on the weekend. Yes, you must have your rest, but remember, you are working toward's fine tuning and lethargy can be every bit as much your enemy as overdoing it.