Not sure about the flouro, but I am spooling Bass Pro XPS mono on reels in Alaska for Red Salmon. It is holding up almost as well as braided line. Red Salmon are terrors. If they get into current a 10 pound fish can break 25 pound test... so I had to use the heavier line here at the lodge on the Kenai. So far Fishermen 957 Red Salmon 322 and most of the Red Salmon wins have been bad hooking, or just snagged fish getting off the hook.