From what I do understand about the subject, I agree I'd think it would be impossible, but like I said I have seen the subject beaten to death with no definitive conclusion given.
I was not saying you need Nolva, I just have everything on hand for peace of mind. Some symptoms/sides happen even when said it is supposedly not possible e.g. guys getting Gyno on 1st cycle of H-Drol.
Put simple, to me gyno and its reasons behind manifesting are extremely complicated, I'd rather just focus more on how/what to use to prevent it.