There is a lake that I fish a few miles from my home. It is not mapped but I have never seen anything deeper than 11′. Later in the year I have noticed out there that the fish wont always be in the deep basin. Fished it for a little bit on Saturday and caught a handful of gills in the 11′ range but moved to some sunken timber in about 6-8′ and that’s where the big boys were. Also got 2 bonus Pike out of the deal with a Tungsten teardrop and 3lb test.
I think of each lake as it’s own little world. Fish do not go on “vacation” to other lakes, that specific lake is all they know. They will adapt to the shallow water and develop their own “personality”. Each small, shallow lake can be different, just like the bigger Walleye lakes. Night bite on LOTW? Forget it. Night bite on URL? Decent. Night bite on ML? Can be amazing.