Like so many, I obsessed about gyno. I tent to put on fat around the pecs anyway, so I always tend to worry if it's gyno when I put on a few pounds.
Argh, I've really come to hate anti-estrogens. They worsen my tinnitus and make me lethargic. In addition, drugs like tamox have been linked to lowering of cognitive function over time. Tried adex, extremastane, letro ( the worst). Bottom line is I wanted to play without blood testing. Thought I could feel it out and vary my dose until I felt that it was right. I know some can, but I couldn't. I was either throwing money away, taking a dose that made no difference, or crashing my estrogen.
So for now, I keep AI's on hand but don't use them regularly. I keep aromatizing AAS well below 400 a week ( with a bit of tren for additional, yet non-aromatizing, androgenic effect) and add 300mg a week masteron. Works for me, and I feel way better. I'm liking the slow and steady route.
Just a note. I'm TRT, so I'm never off completely, and never need to PCT. Additionally, I'm not trying to be in contest shape, just trying to be a little more studly than I would be at 47 otherwise.