Meaning 4-6 days plus the half-life of the intramuscular oil-based steroid , as to when PCT should be commenced?

Hence the muscle into which the oil is injected acts as a reservoir for the oil so it is not released immediately into the blood, and is released slowly. When I inject into a big muscle, such as the Vastus lateralis in the quad, I notice that it takes up to 6 days for the pain to disappear, meaning the oil remains in the muscle all this time.

So would it be accurate to say that, for example, if the half-life of test Enanthate is 14 days, PCT should be commenced 20-22 days after the last injection?