I can say that cable is a lot more durable than chain. My company manufacturers electro-mechanical cables that are able to withstand the rigors of the ocean and we usually provide a ten year warranty. I know the cables are strong on the Summit but I do question the fixtures on the cable. I am certain they are not as strong as the cable but if one were to give I don't think the user would be in too much trouble (unless they were using the last fixture). I would visually inspect the cable for wear prior to use. If you notice any loose, frayed or displaced wires, its certainly time to replace the cable.