Small Spinner,
Although there may be EO on board that will help in the fishery protection etc side of the Nimrod role. There will always be the Search and Rescue side where for accuracy the lower the better. Also for operations where the cloud base prevents work from the upper/ middle air.
I think also that the aircraft should be re-named to the Nimrod MMA. This will reflect the fact that this will be a true multi-role aircraft in the same way as the current incumbent is becoming.
FJ