We seem to be forgetting that that the requirement for 3C is the ability to land with absolutely no visibility whatsoever. Therefore you can assume that the same lack of visibility will exist between the runway and the stand, i.e. a follow me truck can park itself where it likes but you ain't gonna see it. With regards to the idea of throwing a bit more light on the situation, well that usually just makes the situation worse, e.g. on a foggy road would you drive with your headlights on main or dipped beam?
Compressor stall - if DGPS can successfully solve this problem I will be one of the first to sing it's praises, especially if it increases my chaces of getting in and home to bed rather than off to the back of beyond to pick up fuel and wait for the fog to rise.
regards
wizzy