AMTs are not set to any number of seconds... Each engine can be a little different
because it runs a closed loop. I bent the holes on a 280 one time and it
was the fastest thing around. It would stall the compressor for 1/10 sec on the way up.
But as a whole the AMTs are a little faster then the average.
From %30 power to full all AMTs are allmost instant..

From what I have seen Jetcats are getting faster and faster..

Eddie Weeks