I call it "the bounce". Like treats like. Though it can seem paradoxical, it's simple cause and effect. If you wanna boost test levels, one way people don't realize is to suppress them mildly and briefly. Your body will respond to correct the deficit, and in many cases you'll equilibrate at a slightly higher level than before. That is why pulsing is so free of sides and that's why you MUST have fluctuating hormone levels for it to work right.
This phenomenon of bounce-back is also very noticeable with certain dopaminergic drugs (like Permax) that suppress LH levels. If one uses relatively low doses for about a week, mild shutdown becomes apparent. However, if you then abruptly discontinue the drug, you bounce back with a vengeance! This can also be of value specifically for kick starting PCTs that fail to develop in a desirable time frame.
Thanks for sharing your report and great job on those gains!