It seems that one of the major points against 27 is that the GP aerial would (for the existing runway configuration) be within the flight strip of 18/36. This could only be fixed by extending 09/27 to the E towards the highway (bringing the GP aerial E of the 18/36 flight strip), which may not work, providing a displaced threshold on 27 so the GP aerials are west of 18/36, or closing 18/36 which is not likely. It is also understood that a parallel taxiway is in the wind so as to reduce the need to backtrack and the associated delays (more $$’s).
It would be good if all of these options were put on the table so that industry could understand the thinking of the proponents of the ILS.