I know a guy who responds off very low dosages. He can take tren at 50mg every 3-4 days and gain 15 lbs and look leaner. Others, like Hayez, need more. I will say though, that the miraculous effects of tren are much more noticeable at lower body fat percentages. You can't be at 20%++ bf and take tren for 6-8 weeks and expect to drop to 10%.
steve, looking thick bro. Nice bulker you've got going.