Agree with these guys T-911 wont benefit Helladrol. As for your 4 or 6 week cycle, I would suggest playing that by ear if by week 3 you are getting mad gains, just go to 4. I ran h-drol didnt get my gains till week 4 so ran it till 6. Throughout If you have gyno problems, look into running a light dose of Letrozole. Good luck keep us posted.