B A R R Y writes:

Fortunately, I've always been able to reply to the negative, but
declaring does have some significance.

It lets ATC off the hook and allows them to do whatever is required to help
you. It lets them bend all the rules and it lets them say "yes" to any
request you make. I think it benefits ATC more than it does the pilot,
although it can certainly help to have ATC moving other people out of your way
and rolling equipment, if need be.

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