Things may differ in different areas, but around Point Defiance, Dalco, etc., if I didn't have downriggers this time of year, I wouldn't bother trolling. Mooching might be my first choice anyway. Most of the trick is keeping your offering within 20 or less feet of the bottom. That's very hard to do with any technique besides meatlining, downrigging, and mooching. For winter fish, blackmouth, lighter gear is a good way to go. Use a sinker just big enough to do the job, lighter lines, and light leader. In the summer, nearer terminal areas, the fish are transitional and seem to come shallower. At those times a diver, or even just slow trolling a heavier weighted mooching setup can get excellent results - this is at about 40 or so feet deep.