Dennis Johnson wrote:
Newps,

I've always found your postings here helpful and a valuable perspective on
the air traffic control system. I'm not disputing the wisdom of your
suggestion to have the transponder in the "ALT" position whenever it's on,
including while on the ground, but the AIM says,

4-1-19 a.3. ...transponders should be adjusted to the "on" or normal
operating position as late as practicable prior to takeoff and to "off" or
"standby" as soon as practicable after completing landing roll...

I know the AIM is not regulatory, but I often find comfort in following its
suggestions in the hope that it represents genuinely good advice. Do you
think that this passage from the AIM represents outdated policy that is no
longer relevant?

Yes. I know that to be the case.