OK guys ....can I read it back to you to make sure I have understood the subtlties of this.
What Fat Controller (and subsequently ZONOMA ) are saying is that if we were on the Willow 3D towards KUMIL (FL180 restriction) and are sent direct to GWC (FL130 restriction) then the FL180 restriction must be reiterated if it is still required (otherwise only FL130 at GWC).
ZONOMA is confirming that In my scenario of getting a 10 degrees off STAR heading some way before BILNI then I need to be FL180 abeam BILNI (even though the restriction was not restated).
Appreciate the replies guys because in the above case if VNAV is followed it will put you at FL 187 abeam BILNI (as it thinks you will be making a 90 degree turn because you still have miles to run)!