We messed around a little bit with spot and pink shrimp last summer. We bought four of the smaller mesh pots and gave it a shot. I can't really say I'd recommend it, unless your just looking for another activity on the water to kill time. For us it wasn't very productive. My dad I spent a day running around between Camano Island and Everett, dropping pots and seeing if we could get any real numbers. We came up with a lot of mud and about one meal worth of shrimp. We honestly couldn't bring ourselves to get motivated to go again.
Its nice that the season is long, compared to the few days we get for spots, but I'd have to spend a lot more time doing it to know if its a worthwhile activity. So far I'm not very impressed