I do too. I watch all is Q/A videos (Ask Dave). But Dave also believes (and promotes) that when you are done with a blast cycle, you should come completely off and "crash" to essentially let your AR re-sensitize. He has people use ZERO test for a while. This is silliness and he's too smart to endorse such a thing, but he does. AR down-regulation is a myth.
When unattached to an androgen, the androgen receptors (AR) have a short half life of approximately 3 hours, die and turn over with new ones, cyclically. When Androgen is present and BOUND, they become more sensitive, their half life is doubled and the amount of new AR being formed also increases substantially. In summary, androgens UP-REGULATE the AR. By crashing your hormone profile with zero replacement test and high estrogen, you do not make your AR "more sensitive" to androgens. The best thing to do is come off to around a TRT dose and focus on balancing out, health for the cruise. The Focus is on staying as anabolic as possible to hold the mass you have with reduced hormone.
The phenomenon of plateauing or "stalling out" gains at blast level dosages and needing more hormone or food is very real and observed. There are a host of physiological reasons for this perceived stall out (and often the body does need a break) but it is not because the AR needs to be re-sensitized. How he can be as smart as he is and believe this, I have no idea. I believe he's confused the seeming logic of his own personal (anecdotal) observations of stalling out growth with known science. If I am confused on something here, please let me know...