for ppl mabye this is what happens:
in the beginning, taking fin initially causes testosterone levels to be raised to compensate for DHT drop. Since excess test cannot be converted to DHT b/c 5ARs are maxed out… it gets converted to E2 and other bad things.
After a while, maybe someone with high E2 will have a body that will adapt to having high E2 by producing less test and then enter into a hypogondal state.
It would prob take years for the body to recover as it took years to get the body into this state.