It depends on your goal.
If for example your goal is to be in your
best possible shape 6 weeks from now, then
no doubt, 6 straight weeks of use is the way
(Now that we know (thanks to Brock) about adding to Vitex to Tribex to get a pro-recovery effect seemingly just as good as Clomid but with legal supplements, I don’t have a problem with longer cycles for those who have this info and are planning to put it to use.)
Now on the other hand, say your goal is to
have the maximum results further on down the road, long term goals, say, looking better for next spring and summer. Here, 6 weeks of straight use would probably not be as productive as 3 shorter cycles. Your body is limited in how much it can grow at one time.
In other words, say you pack on 10 lb LBM in 2 weeks, or even more. You’re not going to be able to maintain that rate: having already grown substantially only days before, the body is not so ready to continue growing fast. But with “off” time, it is. But that off time should be used productively. Both with maintaining strength (with heavy weights) in at least the first week, possibly first 2 weeks of being “off,” and using periodization
with lighter weights, and perhaps dieting off
fat that needs to be dieted off, in other “off” weeks.
If doing a 2 on / 2 off, I’d tend to think
there’s not really room for dieting, except
perhaps if you made one of the “on” periods
some really severe dieting. You’d be surprised, you may actually gain strength for 2 weeks while on low calories and shedding fat rapidly.