Enjoyed the stability of the Vulcan but the ability to refuel in heavy turbulence is greatly enhanced by boom refuelling. Having said that, the flexibility of probe and drogue using either of two wing hoses or centreline on the Victor gave a greater redundancy as did the number of tankers on every tanking plan. The Tristar, of course, offers long legs to three accompanied fast jets and carries pax/freight at the same time but lose one and three fast jets don't make destination on time or the CAP does not get manned.