Ridiculous. Even pro bodybuilders with their above average recovery and chemically assisted states don't do this. Arnold used to but he didn't recommend it to natural average trainees. You can get away with this if you're only training Olympic lifts and exclusively that because the negative phase is not emphasized. What's wrong with some of you? You're all thinking people with brains. Just because an article is from a book/bb.com/t-nation doesn't have to mean it's correct.