The big canopy tours are between Springfield and Branson on Highway 65. You can see some of them from the road. I think there are multiple tours at that location. They are the traditional ziplines.
The line at SotH is a seated and full-service line. It is not under the control of the rider - which means you shouldn't get stuck and have to drag yourself, reality-TV-style, to the end, and you won't have to have someone Tarzan over to rescue you. It also automatically brakes for you. There are some advantages to all that, but I still would like to have some control.