Do you (or anybody else) have any idea if they did any testing with the reusability of the first stage on this flight? My understanding was that they aren't nea

Do you (or anybody else) have any idea if they did any testing with the reusability of the first stage on this flight? My understanding was that they aren't near ready to land from a full launch yet, but they seemed to be using the launches to test the ability to re-light the first stage and control its flight profile after separation and falling most of the way back to Earth. I wonder if they did any tests like this on this launch, and if so, what the results were.