Yeah man, I read up on some old thread were Dante talked about it a while ago and just went to the gym to experiment a bit.
Then I heard the "pop" and felt the stabbing pain and knew I had done something right.
Ribcage expansion can fuck you up if you're not carefull, so I never dug around about it or tried to do it.
Scapular poping does help a lot with back width but, seriously, it's..."dangerous" per say, and you need to know what you are doing, reason why Aggar and I are not talking about it (also cause I think Dante has better judgement, so if he doesn't think it's wise to share the knowledge, so do I). I only did it once to both sides and I saw amazing difference in my lat spread. Go to IM and read up on what Dante said about this, especially the part about Ribcage expansion.
BTW man, I got your PM but I can't answer it, pms were turned off, email is in my hub, or you can PM hlss and ask him for my email.