Grayfly tells me that the London VE/VJ Flypast will be setting sail from Duxford on the Sunday, and that the flightline will be squeezed to capacity so that might be the better day.
Are you receiving Grayfly, any more info?
Kick off should be at 2pm, usually is.
Saw a pic of the P-51C landing today, so she's hopefully at full fighting fitness again.