Go To:
http://www.lef.org/protocols/prtcls-txt/t-prtcl-130.html

And if that doesn't get you thinking take a look at this little beauty:
www.testosterone.net/html/body_86stero.html

From these sites I now realise why it is so important to surpress aromatization and not just block the estrogen with Nolvedex or Clomid. This I believe will also tell you why some people keep having to use larger and larger amounts of steroids to get any effect.(hint - forget about receptor down regulation and think about increase in SHBG).

Even though Primo and Winstrol are derivatives of DHT they can not converted to DHT in the Body like Testosterone. So although they can exert a similar effect to DHT, it will be much less than what you would expect from pure DHT.

Of course if you are going to inject mega doses of Winstrol and Primo like the pro's then you will probably find out rather quickly why most of them have to deal with premature hair loss.

This info would suggest that Proviron, Arimidex and Teslac would be very useful in not only maitaining muscle mass after your cycle is complete, but in making sure that your SHBG levels remain low so that future cycles do not need increasing levels of Testosterone.

Eg. keep estrogen low thus reduce SHBG levels, which in turn will mean more of the Testosterone you inject will remain in an unbound state.

Put it this way: I have been using Test Enathate at 750 mg per week for the last 4 weeks with no increase in mass or strength. In fact I have actually lost strength. At the begining of this week I injected just 200 mg of Deca and my body mass has gone up 7 lb's in 3 days.