As I was swinging tonight on the beach I remembered the experiments I had done in the afternoon.  I had adjusted Iron Bias for the first time and played with Recovery Speed.  I had run through many of the modes and sounds but didn't get out of Multi.  This got me ready for the beach. When I got there the tide was coming in but on the way out I had found a 'ring' in the dry sand.  It is the electrical fitting ring, not the kind you wear.  I got down to the wet sand in the dark and finally ha