4 weeks to kick in,but start pct 2 weeks after!?

i'm on tren enanthate and prop. i just took my last shot of tren enanthate for my cycle. i was wondering why it takes 4 weeks to kick in yet it takes only 2 weeks until pct start? i should also run the prop for 2 weeks after my last tren shot right??

bump anyone?

Yep, you got it.

The reason it takes a while to kick in, but not nearly as long to leave is the way the ester allows for a ramp up in your system. If you inject twice a week, but the hormone takes two weeks to leave, you will be doing several injections before the first one is out of your system. This allows you to build up to a higher level of hormone in your system. What takes so long is for your plasma levels to peak and for you to get the most from those injections. However, it still only takes two weeks for the hormone to considered inactive (not quite the actual case, but you get the point).