Noticed something interesting, that may be part of the reason for the "rolling" call, fire up your copy of Microsoft Flight sim(I'm using FS98, but assume later versions are the same). Start up one of the "adventures" "your co-pilot will handle all radio communications", following take-off clearance from ATC, the resonse from your helpful co-pilot is eg "Learjet 45LJ is rolling"
Any chance thats whats happening is the encroachment of the microsoft generation?