KISS is one of the best guidelines I know. Simple means there is less to go wrong. There is less to maintain. Simple to operate, Simple to learn. Vertical Trek Innovations Quick Trekker system gives safety confidence with the world's most simple, tough, cost efficient, continuous belay system available.
Want to see it in action. go to www.americanadventurepark.com Watch the short video of the action on the Crazy Squirrel at Historic Banning MIlls. Tested by those four years old to 97 years old. Why would you not want this system on your aerial adventure course, zip line, canopy tour or challenge course.
So KISS it and go with the Quick Trekker continuous belay.