[Pansy-Mae]

From everything that I have read, once you have breasts, you will always have breasts unless you have surgery to remove them.

Nearly correct. You will retain breast tissue but you wll lose the fat deposited in the breast. After 5 years on PM, I stopped taking anything about 7 months ago and I have lost almost a full cup size already.
Thats why you see references to 'maintenance dose' sometimes.