I have read some articles debating optimal cycles on this site. What is the current thinking on optimal length. Specifically, I'm still a novice and I would like to know the best cycle length for test only or test + 1 cycle. My first two cycles of test only 400 mg and 500 mg/week it seemed that things weren't really kicking in until 6-8 weeks, so 8 week cycles seem short. I don't make testosterone, so I'm not worried about suppression, but I am more concerned with aromatase enzyme increase, or decreased test cell uptake, or decreased test receptor concentration. If you have good links to posts that explain all this please share.