Most USN pilots preferred refuelling (or even refueling) from the VC10K rather than the KC-135 or KC10 during GW1.
Nothing to do with the engines though. More to do with operational flexibility - their words, not mine!
Good to see the 'cat crapping in a pork pie' badge on the fin of an ex-'shiny' ten. Although the Dulles Dinosaurs will probably not agree.