Originally Posted by
unmanned_droid
Yes, I'd attributed the vertical tail size to be more related to the short moment arm aft of the CG, rather than being influenced by fuselage masking at high angle of attack.
Interestingly some of the Typhoon EAP/EFA were just the same - twin tails on some including a fullsize mockup.
I had occasion to spend some time in the photo archives at Warton many, MANY moons ago. I came away with the impression that they'd tried to put twin tails on just about every project since about 1960 ...