From the feedback, when I was in the Royal Auxiliary Air Force 1986 to 1997 was the over wing fuel tanks created so much drag that the speed had to be reduced to mach 1.5. This allowed upto 40 minutes endurance hence the inflight refuelling probe. The Lightning was also limited to the amount of underwing pylons it could carry.
I think over wing 'Y' pylons might have been a better solution.
According to the Wyton boys the Canberra could out climb the Lightning to 50,000ft and out manoeuvre a F-16 ina clean state, but we are discussing the Eurofighter Typhoon.