Letro isn't going to make it go away, it's overated. It may make the inflammation and pain go away and halt the growth of the tissue, but once you have it nothing short of surgery is going to get rid of it.
The Nolva/Letro protocol will stop gyno in it's tracks but once you have it you just have to deal with it. When people talk about the protocol removing their gyno, they are simply removing the inflammation. Once the inflammation is gone, you might not even notice the tissue at all or it might feel like you have a wad of bubble gum behind/around your nipple depending on the severity and how much time elapsed from the start of symptoms and treatment.