I think the key is how fast you do it. My wife instantly signed up when it was available and got a booster within a couple days. I waited a few days and my ap

I think the key is how fast you do it. My wife instantly signed up when it was available and got a booster within a couple days. I waited a few days and my appointment was a month out. We also waited a couple of days for our 6 year old and the appointment was 2 weeks out.