hey guys, i have had gyno for many years (since my early teens) from natural causes. i hate it more than anything

it sucks when you work hard for a solid and well defined chest, yet are afraid of wearing t-shirts because it looks like you have hershey's kisses for nipples

up until recently i thought surgery was the only option for pre-existing gyno, but a friend of mine brought to my attention that many people have had success with letro for reversing gyno. from what i have researched, following an intelligent dosing/ramping schedule and making sure to include some nolva post letro for the estro rebound are the main concerns.
however, if you were planning on running a cycle, would it be a bad idea to run letro during cycle? my train of thought is that is estrogen is vital for good gains while cycling, the fact that letro kills your gyno is prob not a good thing at all. so that would leave running it solo when off cycle, either pre-cycle or post cycle (during or after pct?)
what are your thoughts on this? thanks in advance guys