I've seen the last existent one of these (I think) in the RAF museum in Duxford* and even conspired to get some pictures inside the cockpit. I'll have a look for those if anyone's interested.
We are always interested in such things!
Seems to me that some years back there was a discussion about this plane. The weight of authority seemed to be that the famous flight test figures were off by quite a bit, so that it wasn't the hot plane that many pictured.
But memory fades as I age, so perhaps that wasn't the case...
- oldman