Why is the time frame of a week the most critical component to every trainer? Why not how much success you have in besting your previous lifts, coupling that with increased effort and intensity with each workout over the course of let's say a month. I know I aim to train when I feel one hundred percent confident that I am going to be able to train to my full ability and improve myself in some way, shape or manner. Again it depends on the individual but I know I can get away with training once a week and still gain. I don't really want to bring Jones/Mentzer into it, but the guys weren't lying when they continuously pointed out that volume had a negative effect on the recovery capability. It makes perfect sense when you actually analyse what they are saying. I ALWAYS revert to this idea when people ask me what my logic is behind my training; if you were to cut yourself, the body would have to build it's barrier up (skin in this case) thicker and more resilient to try and stop the same thing happening again. Well, if you were to keep picking at the scab, not only would the body have to use up more energy, vitamins and minerals to fix the problem you have now aggrivated, it would also coincidentally take LONGER for it to do so. Take that logic and apply it to your muscles.