I have not seen a thread about this yet, but I did the Annual Pass Preview of Pandora tonight. While I was generally enthusiastic about the land, I was not able to ride FoP because the restraint wouldn't reach its required stage of locking. I have no issues on any other "tight" rides at WDW so I was rather surprised. There were at least 10 of us walking the hill of shame who could not fit on my cycle. A second attendant offered to try again to get the restraint to lock as he wasn't convinced the first guy had tried hard enough. However, I felt like I couldn't breathe already at "stage 2" and declined the offer. Much like the other rides, it seems to all have to do with where you hold your weight. As of now, no test seat is available.