You need to have good boat control if you run it down the chute. Sharp turns can put it into a tight run dipsey (especially with the wicked currents the last few weeks). Let your divers out slow with the boat going straight if the copper is already out. Big flashers can cause problems. We had a copper that was out on a board get into a dipsey last weekend. Both had 11 in slashers. I think it happened when the diver went back out and my buddy was driving. I usually always run my coppers out on big boards with Scotty releases.
We fished yesterday afternoon/evening from 150-300. Had 2 on the 500 and 600 coppers around 290. Dropped both fish. One of the meat rigs came in with a lamprey hooked through the head. Saw one loose bait pod from 30-60 down in 300. Blank screen the rest of the time except for a few very small marks 200-250 ft down.
I've had a plate on my Mercury 2-stroke 90 for the last five years. Catch plenty of fish. Fish the marks and bait on your fish finder. Experiment with speed. 2.2-3.2
Fish a few different presentations. Spoons and attractors.
Buy Dan Keatings video "Keating on Kings". A lot of good info!
With an 8 in attractor it really depends on the speed you troll. I tend to troll on the faster side. 2.5-3.0 so I have better luck with 23-27 inches. This is from the end of the loop to the top of the fly. If you like a slow troll 18-22 is probably better.
We had blood run out and it grabbed very few. Mostly around the swivels. You still have to check them frequently. We were getting them on the hooks too.
I used a new Convector the other day on a buddy's boat. The drags are terrible. They're slow and the line counters are junk. Do yourself a favor and buy some Daiwa Saltist or SG57LC.
I run a flasher/fly with a shorter lead on the bottom. Spoon above it (about 10-15 ft longer). 10 ft separation. Works great in a deep water presentation.
You can but your bigger kings are most likely not that far out this time of the year. You'll most likely find steelhead, coho and small kings. Keep an eye on the sky. And check the marine forecast before you go, when you leave the dock and as you are out there.
If you are going for trout and salmon buy a few spoons and flasher/fly combos now. And stock up on some stick baits over the winter. Those are mostly used in the early spring.
The more I think about it your riggers will be putting some serious strain on the tracks. The way the gunnels are you would have to run some really long bolts to use backing plates. You should really consider using the factory Lowe down rigger plates. They are machined with a tongue that goes into the groove on the inside of the gunnel. Which takes most of the strain off the screws. I wouldn't mount your riggers in the back of the boat. In even a strong 1 ft chop you don't want to be back there hanging over the edge setting lines. Put your DR's even where the back casting deck drops off to the main floor. And run them off the side. Put a 6 in track between the rear clear and the DR. And a 24 in track between the DR and the windshield. You'll be able to run 3-4 lines off each side.