When should one use a heavy tension workout on the Friday depletion?
The traditional high repetition circuit style depletion was originally implemented for pre-contest bodybuilders with the theory of supercompensation and cellular hydration in mind. In order to have the muscles appear full and shapely, they would need minimal trauma and damage to come from the workout. But considering that many will be using this diet are doing so recreationally, the afore-mentioned considerations may be moot. In this case one may be better off utilizing a lower rep, heavy tension style workout (possibly HIT) and letting all the nutrients/carbs/calories from the carb-up go to repair and possibly growth. The question still remains, however, as to whether individual recovery rates will allow one to work each muscle group heavily, twice a week. The best method of resolving this is, as always, trial and error. Experimentation is key.