Just plane lucky. Image #2 above was purchased at O.T. recently. It was a new one on me and I thought it was some kind of acan. WRONG! I should have paid attention when Derek told me it was a Symphyllia wilsoni. That's a horse of a different color! Wow!, I had not even heard of this coral and find it's quite rare. Here's the scoop:
http://reefbuilders.com/2009/01/29/australia-day-symphyllia-wilsoni-desktop-background/
http://reefbuilders.com/2009/12/09/symphyllia-wilsonifrom-australia/
And, of course, check the article on pg. 18 of this ever popular publication!
http://www.reefhobbyistmagazine.com/downloads/pdf/version11.pdf