Stop in at Screwy Louies and ask them what would be a good depth to find the browns. Also, ask at the boat launch for advise on where to fish for browns.
Billy V has a good article on his website on fishing spring browns. There is a lot of good advise in the article such as lure selection, line size, etc. http://www.billyvsportfishing.com/Tips___Techniques.php
I'll be fishing Fairhaven this weekend but if the kings are still there, I'll be going after them. Good luck!
Brian