Tested out my new Cumberland (by Classic Accessories) float tube today. Verdict: LOVE IT! My tackle, while not exactly an unknown strategy, isn't the common powerbait, worms, or spinners, so I'd rather not state it :) Anyways, great day fishing and I landed (and released) five trout between 11 and 14 inches from 4:30 pm to 8 pm, although I spent most of the time scouting the whole lake and seeing how my tackle compared to spinners and powerbait. Right around 7 pm is when they started hitting hard.
Went around the edge of the whole lake (in a float tube, remember) and went up and down a few areas. The northwest middle area (left and across from the beach, in between hot spots 1 and 2) and east right up against the docks (right side from the beach, hot spot 3) were the best spots where I was finding fish. A guy on a dock in the NW corner caught a HUGE one while I was nearby, he said four pounds. I'm not sure about that, but it was big. Didn't see people on the public dock catching much -- this lake has been pressured non-stop from there by people using powerbait, worms, and occasionally spinners. My advice would be to avoid using those if you're able to, otherwise cast to a good spot and get ready to wait awhile if you're stuck on the shore.
Related note: I can't for the life of me understand what the WDFW qualifies as "bait" in relation to the limit of five released trout. Can anyone explain what does and doesn't count?