My best suggestion is to look every day, multiple times a day, but I will relate our experience. We booked Savi’s for the end of our 10 day trip when the 60 day window opened, but decided weeks later that we wanted one at the beginning as well. Nothing was available. I checked everyday multiple times and nothing.....then bam, about 2-3 days before our trip, on the day I wanted, times kept popping up but it wasn't a time I wanted, then after about the 4th time looking that day a 7pm popped up and I snagged it. Also on the day of our 1st build the CM asked us if my guest wanted to build also as they have 2 open spaces. So go to Savis first thing the day you go and check with the CM for any open appt, that day if you cant book ahead of time. You may get lucky.