can receptors really become full and unreceptive? I am confused about this. If this is true how do these people that stay on for long periods of time continue to make gains? I have been on a test cyp cycle about 8 weeks. Before this cycle I had done a few light cycles 5 weeks long 250mg with no pct. I am getting ready to continue on after my test cyp cycle with a sust cycle. I don't want to quit at beginning of summer. Bad planning, I know. My question is that I feel like I am not making very good gains lately. Could receptors be shot>????