Roop, If you look at some of my posts, I always have advocated a weak link. I use either a wire attaching the fly to the wirethen to the wire I have no more than a 20 lb weak link in the leader. One time a couple of years ago, I had a small tuna take all my line as the weakest link was my backing, at that time 20 lbs. I now have the weak link in the leader whether, or not I use wire or 60 lb nylon. It is never more than20 lbs, and sometimes 16 lbs.
learned by experience.