I completely agree with rubberring. I did the reverse gyno treatment with letro, took my gyno down to about 1/4 the size it was. Still have nipple puffiness, but I am starting nolva today for it.
Quick note on the letro, I went up to 2.5 for about 3 weeks, and my nipple did not seem to be getting smaller. Then I decided to taper down and get off letro since my sex drive was non existent at that point. As I was tapering down I noticed that around .75 and .5 of letro my gyno shrunk considerably. So IMO 2.5 is way too high, and .75 or .5 is where the moneys at.
It's interesting you say a low dose was more effective for you, because it is quite the opposite for me. I, like the original poster, got a marble sized lump after SD pct, and I had been running letro at 2.5mg from the onset for about a month. The lump had shrunk about 75%, then after my letro ran out I switched brands and decided to taper down to 1.25mg and the lump seemed to have gotten bigger! so I ramped back up to 2.5mg and the lump now is still 75% after 2 months on the letro cycle. It's hardly noticeable but it can be felt, and I want to see if another month would cure it up.
I really wanted to start a test cycle, but do not want anything that will aromatize at the moment. I'm considering running an epistane cycle though. I'm not sure if it will have any further detrimental effect other than making my lipids a little more out of line. Thoughts?
EDIT: Also, for anyone curious about my sex drive and joints, they remain unchanged; joints are slightly more dry. Letro took away some bloat, so it does have some finer points other than its intended use right now.