Thanks. I live in SLC and they are booked through Feb 2018. Go to Denver quite a bit, they are also booked into Feb 2018.

I could drive to Boise since they have one spot left on a Saturday the weekend after next. It's a 6hr drive though and I really don't want to burn an entire Saturday if they say no when I walk in and tell me to start all over again.

I've sent the question via Global Entry's webform, but they say it takes 10-15 days to respond. Maybe I'll call them tomorrow.

Thanks all.