What are the advantages to having a downrigger spooled with monofilament?
First, cable tends to act like a long guitar string when it’s pulled through the water, creating an audible hum that can spook fish. Mono runs silent when pulled through the water. Second, kingfish anglers like the ability to quickly cut their downrigger line if a fish makes a run toward it, to prevent them from losing it. It is much quicker and easier to cut mono than it is to cut braided stainless steel cable.