As I travel a great deal and go in and out of JFK for international flights, I've been keeping track of how long it takes me from stepping off the plane to getting to the Airtrain platform. (That means walking from the gate, through immigration and customs, and exiting the terminal. )
Thanks to the new Global Entry machines in Terminal 8, my new record is.....8 minutes.
I just had to tell people.
This shows that if you are not sure about getting Global Entry it's worth it.
My previous record was 12 minutes.