Spent a day on the reef last week and my improved albright (braid doubled before loops) held up to everything that the big boys could throw at it. Went again earlier this week and the same knot failed 4 times and I couldn't for the life of me work out why at that time.
So I got a 90lb swivel and tied the braid directly to this with a locked blood knot and the leader the same. Did not fail again and got plenty of major hook ups that busted at the paternoster hook loop (and pulled in some GTs and sharks).
Now I'm back at the drawing board, my knot tying confidence shot. But I know I have a basic rig that will handle plenty of pain. It's a funny sport this one.