"Ive been using various forms of the following lately; I seem to get less rubbish & more big hits with this rig. It hasnt been translated into many more big fish landings but my premature catch & releases have definitely improved
I have been using fresh (dead) squid ~100-120mm mantle length, and a pea sized sinker. Ideally the thing should be bouncing along just clear of the bottom." - Mal.com
Gatesy's Squid RigEdit
Some people like to use a proper Sliding Snell but you can attach the top hook by using a rubber band and wrapping it around the shank and mainline and tying off with a granny knot.
When using a whole Squid more and more anglers are using a treble as the bottom hook to increase hook up rate although a single hook can be used.
Below: Gamakatsu twin hook rig and squid ready for a troll.