I have some tiagra 50Ws with 130lb Jerry Brown, loop to looped to 100lb mono. I am trying to figure out the best way to finish this set-up to terminal tackle. I love the loop-to-loops...HOWEVER, I am fishing in New England for Tuna and want to be able to switch out lures/baits etc. at any time. I have several leaders rigged on flouro, connected to a variety of bait hooks/trolling heads/cedar plugs/swimming plugs/mini spreader bars etc. I am thinking I could just crimp on a 400lb snap swivel to the mono and I'd be good to go. I could then just snap on/off my leaders of various lengths and be on my way. Any thoughts? Also, is anyone using wind-on swivels? They seem like they don't swivel very smoothly and I'm nervous to crank them through the rollers, as I think tyhey would mar the rollers and make them rough.