
Originally Posted by
The Baron
What I mean is that the reason you wait a certain time after your last shot to begin pct is that your hormone levels must be abnormally low to get the HPTA to kick in quickly. It takes a while for this to occur when using long esters like cyp or enanthate. So you have a long period of declining hormone levels where you are not really in an anabolic state but still not ready for pct yet. To shorten this period, bring about a quicker "crash" and be ready for pct sooner, you can substitute TNE or prop for the last three or four weeks. During that time, the long estered test is leaving the body. The prop (or TNE) has a short half life and so when you stop, levels fall off much faster. With TNE you could start pct the day after your last shot, or two days if you prefer. With prop, 5 days to a week is common. Compare that to 2-3 weeks for cyp or E. You should not be getting depleted during pct... you should start out BEING depleted and hopefully get your endogenous production started again before the end of pct.
Keep in mind, though, that all this business is just splitting hairs and there are other more important things to be concerned with than the benefits of using prop to clean up after a cycle.