I missed the best of this event. I got to Everett towards the end of a filming session with a Gulfstream G650ER jet. An Astar was being used to film the jet as it flew some approaches. I had actually noticed the jet online earlier in the day because it had been flying orbits over some of the islands and showed up on FlightRadar24. I didn’t know what it was at the time but, once I got to Everett it all became clear. I didn’t get anything of the Astar as I didn’t have the camera out when I first arrived but I did get a shot or two of the Gulfstream near the end of the flights. Looked like a fun sortie to be involved with.