OK, so I'm a bit late with this - I joined in February of 2018, and it's now May of 2019.  :)
I'm a mid-50's GWM.  My interests are in hypnosis for fitness, and enhanced masculinity.
 
I've been using EMG's Curse - Muscle Bound and Coach Josh's Desire for Muscle daily.  They certainly seem to have helped - I'm nearly living in the gym now.  
Desire for Muscle has made me more than a bit obsessive, which is the point.   Since it occurred to me that reinforcement could be helpful, I also have the affirmations from it in large print on laminated paper - one on the mirror so I see and read them when I shave, and one in the shower.  What happened to Coach Josh's website, though?
Curse - Muscle Bound has the double layer bonus.  I usually let myself trigger the first layer to FEEL huge for a bit, but the processes that "revert to normal" are supposed to trigger are what are really wanted and needed. I do have an interesting side effect...I may be a bit less hairy than I was before, but I seem to have developed a compulsion to shave my body to be smooth.
 
I'd like to add some other things to my mix, such as full-on compulsions to exercise.   EMG's Train Total Jock 4 has a definite appeal, since I've NEGATIVE  interest in "dumbing down."     I need to add Shirtless Summer, since I'm unreasonably terrified to be seen without a shirt.
 
Suggestions are welcome, as well as ideas as to how to merge some of these into longer, personalized files.  I have and use Audacity, but it's annoying. 
 
Moving further afield - I have to confess that Ball Growth, Cock Shrink has an unholy, seductive appeal. So much for that "enhanced masculinity" from the first paragraph.
 
 
Anyway - thank you for reading this, and I am open to suggestions.