Providing another data point..
Applied my infant son for GE 9/21.. Received CA on 9/25.
Logged in today to schedule interview and first available at LAX (we are in SoCal) was FEBRUARY 6, 2018.
Nothing available at Long Beach.
Obsessively refreshed for about 30 mins... (when I applied for myself few years back I was able to reschedule a month earlier so I persisted) and got 10/23!!! It's going to suck trying to get to LAX from Orange County by 9am, but I was really hoping to get GE for my son before our intl trip over Thanksgiving, so it all worked out
FYI, I did have the visualping chrome extension set up (refresh every min) and it did work, but it seems a little delayed.. I got the ping for the 10/23 slot I took (which I found through manual refresh) when I was done rescheduling.