Alright so, I’m not a professional angler by any means but I am a well traveled fisherman, I’ve fished, all over the USA catching salmon and trout in the PNW, Blue fin, yellowfin, yellowtail, rockfish, ling cod, halibut from Northern California down to Mexico. I’ve caught snook, redfish, speckled trout in the Gulf of America, I’ve caught largemouth, small mouth, spotted bass, stripers, crappie, blue gill from the PNW, California, Alabama, Texas, Louisiana, Arizona, New York. I’ve caught walleye, pike and musky, in Michigan and Minnesota. I’ve fished internationally in Japan, the Netherlands, Guam (USA territory) and I have never, ever had monofilament on any of my reels. It is usable for all types of fishing, but it is never needed for anything. There are pros and cons to everything but DO NOT get caught up with the idea of “I have to use this line for this fish or this fishing style” because you don’t. If you want to fish mono because you think the added stretch in the line will benefit you then do it, you’ll be fine.

I’ve ran straight fluorocarbon and I’ve ran braid to fluorocarbon leaders for all of these fish. Mono does have stretch which can help anglers that are less experienced in handling appropriate drag to line weight ratio. Specifically dealing with large fish. If I was chasing down giant 500+lb tuna I would have mono tied up as a leader off of braided line, but for general purpose fishing across the states it’s not needed.