The static lines are vented to the atmosphere, so the change in pressure
with altitude takes place in the static lines just as it does in the
atmosphere.

That's not logic, that's physics. Many things that are logical (heavy
objects fall faster) are not supported by the laws of physics. That
degree of physics knowledge is not necessary to piloting an aircraft
(though it is helpful), thus I expect not all pilots know this.

Jose
--
Get high on gasoline: fly an airplane.
for Email, make the obvious change in the address.