Ok, how about an up to date report?
I read that message about the bad tasting trout. Frankly, did not believe it. I have experienced mossy tasting fish in the late summer on various lakes, when the moss/algae was thick, but never had a problem with John fish in the winter. However.....
The wifey and I drove up Tues morn. Water was clear (which always makes the fishing much more exciting), and we saw lots of fish, but they just wouldn't bite. The fish was cruise by within inches of the bait, sometimes they would nip the bait, but rarely a good take. I finally caught a small one about 11, and decided to open it up to see what was in the stomach. Just as I suspected, full of stickleback minnows. Gorged. I could see dozens, sometimes hundreds, of minnows right on the bottom. Hey, no need to feed on worms or meal worms or krill when there are a gazillion minners right in front of you! We ended up with 3 small trout over about 9 hours. Not a very good catch rate.
The wifey caught one just before we left. I had a pretty firm grip on it, trying to get the hook out. Squeezed it a bit, and 6 minnows came flying out of the mouth. Two of 'em were still alive, and swimming in the melted ice inside the hut!
Fried up 3 fillets tonight. Yes, there was a faint mossy taste to those fish. First time I have ever experienced that in the winter. I did eat all the fillets, but I wouldn't give those kind of fish to my elderly neighbor, as I often do.
I have been fishing that lake for 60 years. I've had some good days, some VERY good days, and a few bad days, too. Probably won't go back til spring time, open water.