It's also worth clarifying Ascot (Ops) are 'only' the people who sort out problems at the last stage -48hrs to route completion I think; better to flag up problems/suggestions/changes at the earliest opportunity while the flight is still with the planners to stand a better chance of success.
The mighty Ascot comprises 1xofficer, 1xSNCO and 1xSAC per shift who might have higher priorities with a problem elsewhere.