Explaining how we make our bandit gear for snapper season may be a bit difficult, but I'll try......
Take heavy ass mainline...300 does fine. You're going to slide onto it, in this order:
sleeve(round, barely big enough to fit over the line), bead, barrel swivel, bead, sleeve
repeat for as many hooks as you want to run.
So you tighten down the sleeve as a stopper, then you have two beads sandwiching a barrel swivel, and another sleeve crimped down to hold it all in place. Go about 10" between swivels.
At the bottom and top of your rig crimp on a snap swivel for the weight and to attach to your line.
As for droppers, we make twisted snoots. They stay pretty rigid and hold out away from the mainline so they don't get tangled with each other. Also, since the barrel swivels can spin around the line freely, your droppers don't get all twisted up around the mainline.
The easiest way to make them is with a power drill. Crimp the barb on a ~2/0 hook and put the eye into the drill's bite, like it was a drill bit. Take about 18" of 80# mono and loop it on the hook bend. I hold the drill between my knees to do this. The drill will be pointing up at you. Hold the line just above the hook and turn on the drill. As it twists the line, run your fingers up the line. Pinch the two tag ends and tie them in an overhand knot. Pull them very very tight with some pliers.
Stick the "eye" of your snoot through the eye of the hook you're using, loop it over the back, and pull tight. Attach it to your barrel swivel in the same fashion.
Some times we fish 'stack gear,' which means you have two snoots coming off each barrel swivel. One will be long, and one will be short. Some guys even go super nuts and run triples. Usually the gear has 30 hooks on it for red snapper.
For grouper we make the mainline the same way, but use snelled circle hooks on ~1.5' leaders. They aren't twisted, and we usually just fish 10 hooks.
Hopefully somebody could actually follow some of that.
