It all just depends on the crowd level. I have pulled a FP for Indy first thing at 9 with a return time of 9:40 - 10:40. When we returned at 10:00, there was no outside line, so they weren't even taking the FPs from people. When we got off there was still a few minutes left on our return time, and the line had grown to 20 mins (still pretty short) so we passed on our FPs to a couple entering the stand by line. Of course, mornings always have shorter lines than later in the day. So if you happen to go by BTMRR and the wait is 10 mins, I would ride and pull a FP for something with a longer standby line, like Indy or Space. On crowded days they are all worth it!!!