whilst we were riding it, and we had a big digital meter on the ride, so that we could say, at two minutes ten, we need to bring this movement back, or we need to exaggerate that big drop, at three minutes ten, we are going to bring that forward. the video creators also need to have intimate knowledge of how the ride moves. one of the first things that we actually start i with is the ride envelope, what are - the degrees of motion? three degrees forward and back, pitch and roll, stuff _ like that, so all of those - mechanical engineering things that are built into the way - that we work with our camera. even though the ride envelope may be x, you can trick- the brain into y, because even though the seat only moves i a little bit down, if we thenl continue the camera further down, then slow down the way that the seat moves down - and speed up the camera, - you have the sense that you're going much faster than you may actually be, or you may be - going at a steeper rate - of descent than you actually are, so it is understanding - the mechanical engineering side of it and then kind of howl