Well, I tried this file, then afterwards, I plucked out the trigger phrase ("Big Boobs"!) out of the MP3 and placed it in its own file. I then looped the trigger phrase file.
After 5 or 6 repetitions, I could feel a tightness in my chest and I looked down, and upon each successive repetition, I saw my chest shudder a bit, but I don't see any growth. Yet, when I look away, I could feel them getting tighter and tighter with each repitition.
While there doesn't seem to be any actual physical growth I can see, the tightness that the looping trigger caused was outstanding! I can't wait to try the hypnosis file again and again. Here's to hoping that I see some growth, even though no one else'll be able to see it. :-)
Thanks, everyone!
--DanielSanGeo