We mainly jig for halis while anchored with spreaders down. We find we catch around 40% our halis on jigs, and 60% on the spreaders. We use Okuma Magda Line counter and Shimano Tekota reels on 7' Ugly Stick Tiger one piece medium light rods. For line we use 65lb braid, I use Spiderwire Stealth and my dad uses Power Pro but there isn't much difference. I wouldn't use 80lb or larger braid as when the current starts going the extra diameter will make it harder to stay on the bottom. For leader we use 60lb mono so if we get snagged it will break before the braid (wrap your line around the gaff to break it off the bottom). For jigs I make them myself with weights between 200g - 420g and get them nickel plated.
We went out on Sunday but didn't catch any halis on spreaders or jigs, but we did catch enough bait for the next few trips on the jigs. We managed to catch 7 Sole, 2 Pacific Cod, and 1 herring so it can provide a good source of live bait for your spreader bars.