We had applied for our Global Entry passes and our interview, which we had to schedule months in advance, was scheduled very close to our departure for Israel. We decided to stop at the office at BWI airport on our way to visit our kids. It turned out, on that day, they had a lot of no shows for the interview. We were able to slip in to an empty slot. Don't know if this is possible in larger offices like the JFK or NY metro area, but if you have the ability to try it on a weekday or get to the airport early on another trip, you may be able to bypass the wait.