For your purposes, Winny holds very little value. It is a BBing contest prep drug. Hardens, leans out, vascularizes, but the strength that comes with it can also bring injury as everything is dry and tight as a drum.
I won't use it again, unless I get a wild hair and end up doing a masters level BBing show. And if I did use it, it would be for no more than 4 weeks.