I personally advocate longer cycles, though im sure most will disagree. Why do i like em' long? I find that with longer cycles, you stop gaining after a given time, but staying on after that allows your body to somewhat normalize and get used to that weight. I do it this way, 20 weeks at a time, followed by hcg and nolva, and i don't lose a pound when i come off.
Just keep your blood work up to date, and you'll be fine. I also have had no problems with hpta recovery, sex drive is high within 2 weeks of stopping cycle, and actually, it was better than it was towards the end of my cycle (which included test....)
Musclez