Area 2 has very little structure from what I've seen. If you want to come up to Area 4, I can give you all kinds of good spots to catch rock cod and lings. I haven't done area 3 but I've done the S. end of area 4. One thing that I've found (it's pretty obvious though) is that the fish get more plentiful and larger the farther I get from a marina/boat launch. E.g. if I fish for lings near Tatoosh Island, I catch a lot that are 1" short. If I fish near Cape Alava, I catch many more keepers. Cape Alava is almost halfway between the marina at La Push and the Marina at Neah Bay.
In general, it's not too complicated to find good bottom fishing locations - especially since the rules limit us to areas <120' deep. Find structure and rocks that's as far away from easy access as possible. Note that most maps have contours at 30', 60' and 120' but not at depths in between. Hence "bumps" that rise from 110' to 75' may not show on maps but ones that rise from 110 - 50' will. The latter will get heavier fishing pressure than the former. So, find an area with lots of rises on the map, and then boat around in between them to find the ones that don't show on the map. Fish those. Hope this helps and let me know if you want to fish area 4 sometime.