Forma Stanzol, can using too much bring down estrogen too low?

[Gym4Life]

Can using Forma Stanzol, anytime either on cycle, between cycles, or simply off cycle. Since Forma is an AI and great in pct for helping to lower estrogen I was wondering how you can tell if you are using too much (bringing estrogen too low). I have read that estrogen does play a part in strength and its important not to have it too low which could counter strength, and workouts.
How is Forma used when off cycle (way after pct) to safely not affect hormone balance you just worked on getting back to normal.

 

[RickRock13]

Blood work is the only way to tell.

 

[Oatmeal12]

Yes it can. I hit 8 using forma

 

[pdelta]

I've hit 6.2 using formestane.