Quote Originally Posted by Fishin_4_Fun View Post
They pull those lakes down 20-30 feet during the winter. Visiting those lakes during the winter will be way more beneficial, than using a SI unit at summer pool will ever be.
I agree with you, but I have seen cover at winter pool and then not be able to find it again when it is under water. You can also see fish and baitfish on the graph. If you see something on the graph you can move your cursor to that spot and the humminbird will tell what direction and how many feet away the object is.