So basically if I'm downrigging I use braid to leader with an fg knot, a out a rod lengths of mono leader (not fluro!) then just tie the hook on that's it.
I use two set ups one with a single hook rig then one with a double hook rig,
The double hook I use for bigger squid if I'm targeting big kings. I go to the tackle
Shop and buy those lumo green beads which have a hole drilled through then to thread onto your line, well I thread them into the line then slide a hook on and slide the bead over the hook, it's hard to do and requires a lot of pushing Buy can be done. Then just tie a hook on the end.
What this achieves is you have a sliding rig so you can adjust to the length if the squid, the. Simply with your top hook pin the squid through very tip of the hood, not in the back and out the front but just through his skin and come back out the same side of his good if that makes sence!
Imagine your just giving him a piercing not stabbig him through his whole body, this helps keep the squid alive.
Then the second hook put through the bottom of his hood just tuck it up through the hood. I'll see if I have any photos to show you, very important to have some slack line between the two hooks but so you don't bunch the squid up when in the water.
If drifting just slide on a decent sized ball sinker tie a swivel on then from the swivel to an arms length of leader to your hook that's it.