I am fairly new to my new theatre home and my predecessors Were not the best at taking and keeping notes. That being said , we have a flyable grid with a cable wire run to a single motor. I first am looking for guidance for how often and who should be inspecting/servicing the system? second how to figure out the max load and if it has to be balanced? I will admit outside of one class as part of my major in college quite a few years ago I really have not had much in the way of exposure to these types of systems. so I might not have give you all of the information you might need or even be asking the right questions.