i would open the squid up, then lay the squid on the flesh side of the macky. thread the macky/ squid up the snood as if it were one (as they're layed out). you can put the head of the squid on as a tip if you wanted to. then wrap with elastic, don't bother if you're only lobbing it 20- 30 yrds. then hook the top hook through the top of the bait, i prefer to put it the hook the opposite way to the bottom hook.
what type of elastic are you using? you need the modern thin stuff, the easier it breaks the better. you need to pull it tight when wrapping a bait, work your way up and back down so the bait is secure. then pull tight, the elastic should snap at this point. as the elastic snaps it burries it's self in the bait, no need for tying or anything.
i elastic anything that has half a chance of coming off, it's so handy.