Make a special request to the cast member to ride in back. This is true of most roller-coasters, but becomes even more important for longer coasters. Here's why. When you make slow climbs, the back of the train has to reach the top of the climb before you pick up speed. If you're sitting in front, you're halfway to the bottom of the before you pick up any speed, and that makes the drop a little anti-climactic. Big Thunder has three of these slow climbs, which makes it more important on this ride than on any other in the park.