In all of their examples of radio transmissions, they
use two-digit runway numbers. There is not
one instance where a leading zero is called for.

Do you mean that all the examples happen to use runway numbers in the
range 10-36, and that they never happened to use runway numbers which
point northeast?

Convenient, no?

Jose
--
Money: what you need when you run out of brains.
for Email, make the obvious change in the address.