what is your b/f. you might try reducing it if its to high. i have some due to upjohn cyp for 5 years with nothing. now i take proviron faithfully..50mg daily and it usually goes away.
Letrozole + nolvadex is a great anti-gyno tool, but it realy depends on how bad the gyno is. I've seen people get rid of gyno with the combination after 10 years of having it, and I've seen people on the opposite side of the spectrum not being able to get rid of the gyno. In the early stages, it's fairly easy to get rid of the gyno, as you go on it's harder and harder.