Nope. I meant the waisting of the fuselage where the fin starts. Stand on the steps by the front door where Dude's wife took that picture, and you'll see that the cabin roof is 'waisted in' noticably where the fin is mounted (not the sides of the fuselage which remain parallel - the roof, which is bowed inwards and downwards to reduce the fuselage cross section co-incident with the fin's extension above the fuselage).
OK, I see where you are coming from. There is a change of line at the top of the fuselage, but this doesn't really constitute 'waisting' in my terms. I think of waisting as a local area increase followed by a reduction to fill in a bump in the area distribution. What you are seeing is the change in upper fuselage line where the extended rear fuselage fairs into the prototype fuselage line. This extension was introduced to stretch out the lifting length, but to keep enough ground clearance it had to be upswept, which gave rise to that upper surface kink.
This one really shows it up Alpha Fox after last landing at Filton.
">
Cheers
CL