Hopefully.
I used to routinely jump between two we had at Boscombe Down which were successive serial numbers. The difference in headroom at the same seat height setting was about 2 inches.
There was also a wonderful story just after they got installed at RAF Cranwell. Somebody decided to line them all up for an AOC's inspection. So they were duly lined up, spinners all in a perfect line. Then somebody realised that there was about 10" of stagger between the backs of the rudders. I think the AOC was carefully shepherded to the front of the aircraft only.
And that's the stories that won't get me hunted down under the official secrets act.
G