My cheery hail through the open window of the Fiesta that had twice had the the unstoppable imperative to overtake. He was looking out for me. I was passed with lots of room, and very quickly, towards the bottom of Johnstone Terrace. Just before the queue of traffic at the roadwork lights at the bottom that I filtered past.
At the next I had positioned at a junction for a just-afterwards right hand turn and he slunk up my left side. Thing is he was making the same right turn and so had to take it reeeeeaaaaaallllly wide because I covered those first 20 yards just as quickly. Hell, he even had a head start of a couple of yards with the junction positioning.
Bingo. As expected. Queue of traffic a further 60 yards on. Filter to front of the queue, giving my greeting as I pass.
Cars are soooooo much quicker than bikes.