PCT for X-Factor/Prostanozol cycle

[Synicus]

This will be my first PH cycle. It will be this:

Week1 X-factor, Xtend, CEE
Week2 X-factor, Xtend, CEE
Week3 X-factor, Xtend, CEE
Week4 X-factor, Xtend, Prostanazol 100mg, Perfect cycle
Week5 X-factor, Xtend, Prostanazol 200mg, Perfect cycle
Week6 X-factor, Xtend, Prostanazol 300mg, Perfect cycle
Week7 X-factor, Xtend, Prostanazol 300mg, Perfect cycle

PCT:

Week1 Nolvadex 40, RXT 50, Retain 2-3 caps, EFAs, CEE
Week2 Nolvadex 30, RXT 75, Retain 2 caps, EFAs, CEE
Week3 Nolvadex 20, RXT 100, Retain 2 caps, EFAs, CEE

Weeks 4-8 ActivaTe, CEE, etc.

Since Prostanazol is un-mythylated and pretty weak, do you think 3 week PCT is enough or should I go 4 weeks?

Thanks