Today is the fourth day since the Omega arrived at my home. And what Alvin has predicted will happen has indeed happened. The tuning that drifted badly over the first three days or so has stabilised. Many unisons that were previously horridly off have snapped back in line, not completely, but substantially. Only the G#3 unison is truly horrible.
BUT, although individual unisons may be back in tune, they are out of tune with the rest of the piano.