Was actually the "Hokey-Cokey"....
"You put your left break in, you put your right roll out..."

The visual call is ultra important as Chipmunks seem to disappear against the normal UK, cloud laden sky when you are trying to look for them If we don't get visual with each other, we cannot do the opposition manoeuvres as even at Chipmunks speeds, the closure rate is around 250 kts!
Great day and a nice shot of the "serious" side of display flying!
Cheers,
Duncan