I recommend watching wait times throughout the day on the app and looking for a good chance to ride before closing just in case it breaks down. I went last month, and the ride was down for about 6 hours (in the beginning of the day, but it could have just as easily broken down near the end of the day). We were in Diagon Alley when the ride finally opened. People swarmed the ride while we went to put our stuff in the lockers, so we just got in the single rider line...the TMs motioned for those of us in the SRL to run onto the ride before those in the regular line made it through the queue, and we literally walked onto the ride in maybe 30 seconds. We missed the queue, though, so I think we're just going to wait it out next time.