Is winstrol only truly good for contest prep (hardening). I haven't taken winstrol in about 3 years and I don't remember how long it kept my muscle hard. I added it to the end of my cycle and it was nice as far as hard looks go. I'd hate to spend the money on it if it only keeps my muscles hard for like a few weeks or a month. I guess my question is..how long after you stop running the winstrol do your muscles stay hard?