Fina can cause progestigenic gyno, but not estrogenic gyno. An Anti-E isn't going to help.
Good news is that Winstrol is an anti-progestrone. So if you add 50mg ed of Winny you should be set.
Also, the chance of gyno seems to be dose dependant. Most reports of gyno are coming from users who are at or above 150mg EOD. I'm not hearing reports of gyno from users taking a typical 75mg/eod dose.
So to answer...add Winny. EQ & Test are also good additions to a Fina cycle.
Good luck!
Zen