Quad... receptors actually UPregulate in the short-term. The reason your first cycle was so much more effective is you had less muscle before you started. Maximum muscle support is correlated to how much test you have in your system. When a guy is as big as you, a beginner's cycle would only serve to maintain his already super-natural amount of muscle.
If you starved down to the amount of muscle you had when you started and redid your first cycle it would probably be just as effective as it was the first time.
I'm not sure about bridging... I've seen evidence that even miniscule doses shut people down pretty thoroughly. Better just use HCG well. But then again if there's a control vs. bridge group study that shows equal recovery, by all means post up.
If you starved down to the amount of muscle you had when you started and redid your first cycle it would probably be just as effective as it was the first time.
I'm not sure about bridging... I've seen evidence that even miniscule doses shut people down pretty thoroughly. Better just use HCG well. But then again if there's a control vs. bridge group study that shows equal recovery, by all means post up.