How many 20-30 minute FP kiosk lines did you wait in, and why? What were the return times?
My specific example was a slow day (morning rain) during a low crowd week. There were no lines at FP kiosks, until they started closing kiosks down early. We found that the more crowded the park, the longer the FP kiosk lines, and FP return times would be later. If the park is so crowded that the wait at a FP kiosk is 20-30 minutes, no way will rides have FP return times 5 minutes away.
On that particular day, FP+ was better, because a FP return time 5 minuteszpainsaway did not exist with old paper FP system, and we took advantage. But that was an anomaly, during the rest of our week, return times for additional FP were later, and we got fewer FP than we used to under the old system.