So what was your E2? You said it came back high, but what did it come back at? And I would not take an ai just because your e2 is high, so what if it’s high. Were you have symptoms, signs of gyno, spicy nips, very emotional?? If not, me personally I run high e2, I t actually is a benefit for muscle growth more than people think. And if you had no signs, I would go with adding another compound before adding an ai, primo, EQ something along that line first if no signs.

How detailed was your lab work? Anything else out of whack?

It didn't limit my gains but it did limit my mental drive once my E2 got too high. But after starting the AI I've been Gucci.

It sounds like you had things pretty well dialed in with your 150 dose. I personally would not have 5x'd my dose. I would have picked maybe double that first time just to see how you tolerate that. Of course get your bloodwork and adjust from there. The alternative of course would have been to simply add an additional 1-200mg of some compound to your 150 like Primo or Masteron to your 150 dose. Anyway, you are doing research. Now you know 700 doesn't work without modification. So now you need to figure out what dose knocks your e2 down enough to feel good (assuming that is the issue). I would be inclined to make small changes that keep the growth moving, but you do you. Best of luck.

I’ve never heard of that, usually it’s the inverse causing problems - e2 is required for proper recovery.