From what I read it appears 12-14 weeks seems to be the standard length for a cycle. Why is this? The reason I ask is if it takes 3-4 weeks before you start to see the results from a test. e/c cycle (due to the long esthers?) could you "preload" a few weeks before actually starting the cycle (ie change diet and workout intensity)? Is this 12-14 week routine based on fertility issues? If yes, then could the 12-14 week cycle rule be extended (say to 16 weeks? longer?) for those of us on trt who no longer have to do a pct? If there are other reasons for the 12-14 week cycle, what might they be?