From experience, it’s better to under dose adex and deal with the worst side effect, in my opinion, gyno symptoms with the first step being 20mg nolva EOD as you adjust your dose upward. I can deal with a couple days of high BP (high estro symptom) while I adjust my adex to mitigate the gyno and all other high estrogen symptoms (Google is your friend, not gonna completely spoon feed you) than wait, feeling like absolute shit, for my estro to creep back up (no motivation, cracky joints, overall blah feelings) by cutting my adex dose completely.
I would run 0.5mg EOD on a 500mg blast and 0.5mg M/Thu on a 250mg cruise. The 3rd, or 4th or 5th, cruise I became an over responder and that dose sent my estro sub-10 and I had to push through some extreme mental blocks. Long story short, just started a new blast and switched to aromasin; it seems to be better for me so far at 6.25mg ED (pending 2wk blood panel).
As far as PCT goes, I won’t ever PCT. But, there are conflicting runs of Nolva by many of 40/40/20/20, 20/20/20/20, and 20 EOD for 4 to 6 weeks. If I had to PCT, I was going to do the 20mg ED for 4 weeks… but, I forgot why I chose that method as after my first cycle, I decided to cruise anyway.