30 foot would be a little weak. It's probably over 40 feet. It ticks off a little more than 3 seconds at normal playback speed on the video. IDK, but I haven't seen many rails where you are on them for over 3 seconds.
The real Gimungus S-Rail<br>
<a target=_BLANK href="http://newschoolers.com/web/content/viewvideo/id/92764/cat/all/search_string/cascade/">http://newschoolers.com/web/content/viewvideo/id/92764/cat/all/search_string/cascade/</a><br>