Actually, there aren't "very many" studies. There are five or six loosely conducted studies under suspect conditions. There have also been studies that show clomid raises SHBG and decreases LH and IGF-1. Not to mention "very many" people feel like re-fried dog shit while on it. And oh yeah, it's a big time dick killer.
I think it does nothing to restore the HPTA. Every study I've ever seen where it's done so (supposedly) was over the course of months -- where I would have returned to normal anyway. But hey, if it works for you, go for it.
Nolva is good for gyno, if you're prone to it. It reduces gains and also has a negitive effect on libido.
The PC formula from PF has...
For e managment.
Calcium D Glucarate
Chrysin
Bioperine
For liver
Milk Thistle
ALA
Pirkoliv
N-A-C
Lecithin
For libido and erectile fuction
Maca
Epimedium
Cndium
zinc
Arginine
I'd say in most cases it will be enough but if you can score some proviron it wouldn't hurt. And if you've been at massive dosages for months on end you may need HCG but the "Post-Cycle" would still be a good idea.
For those who use a-dex, I would cut the dosage in half when using Post-Cycle.
And there's no need for bromo, nolva, viagra, or Tylers. That's a pretty good deal IMO.