I spend a fair bit of time in NT fishing - Barra, Threadies, Jacks etc. My most common set ups are:
When flicking lures for barra - 50 lb braid tied to 60 or 80 lb leader (5 ft max due to reel), then a Norman's Speed Clip or Cross Lock Clasp for connecting lure - not real happy with either, but yet to find something better. Also sometimes use a Jack Erskine Twisted leader made from 60 or 80 lb leader tied to braid. This gives a doubling of the leader over the last 30cm or so to the clasp.
When live baiting - 30 or 50 lb braid tied to 60 lb leader(about 8 ft). Running sinker on leader above swivel, 80 lb leader below to hook (about 40cm).
I'm happy, but always looking to improve. I've heard lots of comment on the Bimini Twist and how good and strong it is. I haven't tied one, but I'm sure it won't be an issue with practice.
What I'm interested in is how and why they are used. So I get a great strong loop in my line - what do I do with it? Given the type of fishing mentioned above, what benefit would I get and how would I get it?
Norm C