Back on topic….. went to Serpentine. There was a major glitch with digital coverage so the vendors couldn’t accept cards. So merchandise sales affected. Queues for coffee took an hour and twenty minutes, we gave up waiting for food and left at lunch time. Saw the Tiger Moth race go out and return, but the program was very slow and really only two aerobatic aircraft with models in between. One historic aircraft flew a routine. Things may have improved after the lunch break. There was a big crowd, so they probably did well financially.