I find I get most of my gains near the end of my cycle or the few weeks after my last shot. I guess its cuz my blood levels are highest then. So, no I do not notice things sluffing off at five weeks. I find my gains come exponientially; I mean that I get most of my gains towards the end of any of my cycles even 16 week long ones. At five weeks, my gains are usually just getting going for me but everyone is different,,,later,,,bigjosh