Decurion, however accurate your post is, what is it's point?
The thread is about Airbus, specifically A319.
We do however use the same technique across the 320 and 321s as well.
We used to use it on the F100.
I never operated the B737, but doubtless Max or someone will enlighten us.
We have time restrictions on warm up times depending on previous shut down time (2 mins if less than 2 hours, 5 mins if longer).
Our SOPs give guidance on when these procedures should not be used, and when they are appropiate and aid fuel efficiency.
They have been approved by both the CAA and Airbus.
As I posted earlier ATC give us a heads up on expected airborne times.