I was just about to start a thread to praise letro, but I want to give you a heads up because I'm going through the same prob. Developed gyno in 4th week of cycle from test 400 mgs a week with a 25 day 45mg ed dbol kickstart. I've been running letro from 7 days and my gyno has reduced by estimated 80%! Granted, I stopped taking dbol almost 2 weeks ago. Letro works brother. I was running it at 1.25mg ed for first three days then bumped up to 2.5mgs. I no longer have the need to take it at this dose so I'm going to taper down and remain on until PCT.