Celestial has kept his word and shared some of his knowledge (no - its not 'insider' knowledge) with me privately, and will keep his word to do so with all who are interested, I am sure.  I am hoping he will either decide to start posting at Reddit or return here. He was a most valuable asset and someone whose DD was very helpful to me.  If you are still reading here, Celestial, thank you for your contributions that sprang from your hard work and your expertise.  I will miss them.