What time is your dining reservation and are you dining at Tiffins or Tusker House? For me, when I did FP opening week, I waited 5 minutes. The FP line was a walk-on all the way to the loading area. Once you are in a room, it will take about 15-20 minutes until you are off the ride. The FP line can also depend on if the ride closed down at all during the day. Have a great trip and have fun!