Stan, Sounds like those anti-600 ft guys have never fished a real lake. They've definitely never been on one of the Great Lakes. Which is okay I guess, cuz you're getting a leg up on them come derby time. (Pyramid Lake Nevada is about 1/2 the size of a few of our our Finger puddles...err... Lakes)
Top Linning structure with a board can be extremely effective once you get the hang of it. Just use your boat handling skills to control the board. Many guys here fish boards in 3 FOW looking for early spring Browns.
Tom B.
(LongLine)