On a related note, are there any official/legal guidelines as to taxi speed limits? Walking pace is obviously too slow if you have to taxi along a 3km runway, down a straight taxiway with no intersections. But on the other hand, at Tempelhof I've had to follow a follow-me car straight across the apron at Vs or thereabouts. Makes you pay attention to stick positions...
Why did you have to follow him so fast? Couldn't you just slow down if you needed to?