I'm sorry guys, I'm retarded - it was 2 weeks on, 4 weeks off - here's a portion of the article, that should make the case.
"The advantage is that there's actually a two-stage process of inhibition. You have the hypothalamus and the pituitary. Between the two of them, the hypothalamus produces a hormone called LHRH, and that tells the pituitary to produce LH. LH tells the testicles to produce testosterone. Now, after two weeks, the pituitary actually isn't inhibited yet. In fact, it's sensitized. So it will put out more LH from LHRH during the first two weeks. If you stop at two weeks, the recovery is very, very fast. All you have to do is stop and when the hypothalamus produces LHRH, you're back in business, especially if you use Clomid. You'll get a very fast recovery. You'll be back to normal in less than a week. But, if you go beyond that two-week point, the pituitary also goes into a state of suppression. And from that point, it can take many weeks to get back to normal."
So, Bill Roberts makes the case, that cycling in this manner will allow you to add quality muscle in more measured cycles, and maintain it better.