I was reading in the educational thread something about preventing deca gyno and i read the only thing which can do this is RU-486. Now my next question is what is it?? i did a search about it but couldn;t find anything telling me what exactly it was. Another question i have is if you had the choice between deca or sust which would you choose. Now, I would love to do a test E cycle for my first one but im not sure if that is available from the people i know. I do however know that sust and deca are. Thanks for any help you can provide.