At the expense of this perhaps falling on deaf ears because it's been over a week since the last posting, please let me say that, as a passenger who has been privileged to have been invited on a number of JP/Strikey flights over the past five or so years, a run and break is absolutely thrilling and a great climax to an already magical flight.
I have noted however that my pilot, who has a display ticket, has not always finished with one, it has often depended on his mood, time in hand, traffic, etc. It has also not been done to show off, more likely to hone his skills, already quite considerable. I'd also like to think that ATC at either NW or Duxford have been satisfied with his capability to perform one adequately. I guess it's also part of the reason for having such an expensive piece of machinery.
This does not lend anything to the discussion about for or against, but perhaps adds a perspective from the non-flying side.
Thanks for listening.