Great stuff, and easy to cross the line between the "right amount" and what's excessive and just leads to unwanted sides with no further benefit. I found that 50mg is a great dose, 75 mg makes me hard as a rock, and 100mg makes me break out in acne all over. If you are using long term I wouldn't exceed 50mg/day and taken twice in 25mg increments is best as well. I know peeps that stay on it year around whether on cycle or not to maintain that "hard look" with no inhibition of "hpta - hypothalamic-pituitary-testicular axis - " when they do come off.