Thanks for the links, I'll check them out tonight! The hormonal route is something I'm currently leaning towards myself. It seems to be drastically effective! Definitely check out Bridgeburns thread in success stories if you haven't already! Despite that, I DO think the calcification angle will also yield great results. (Combining both could be amazing!)
Not sure if you've seen this yet, but this guy claims his gains are entirely from massages
http://www.jdmoyer.com/tag/scalp-calcification/
As for my personal experience since I started: my scalp is becoming a little more pliable. It's not drastic, but it's definitely improved. (I'm using the area above my nape for comparison ). No regrowth yet obviously. It's way too soon!
Keep us up to date on your own progress too!