I know this thread is old as hell, but I needed to reply to this post because I tried that Nelson Montanas 'no shut down' bullshit. I followed his outlined 3 week or 4 week cycle with no PCT except some natural things and it absolutely fucked me up. The main problem was I didn't realize I was shut down so I was shut down for months. I was a beginner and blamed my emotions on my business that seemed in trouble, but it wasn't really, it was my lack of testosterone that was making me see the world differently, through the eyes of a worried woman. Needless to say, this idea of a no shut down cycle is complete bullshit, and it fucked with my life, never try it.