Those are some hogs. I wish I could find them like that. I can search for 3 days and get skunked most the time unfortunately. One day itll all click I hope.
Stay at it and it will click for you. It comes from time on the water and learning. Your questions and map show that you're going about it the right way. I like the lowest area circled on your map where that channel ends when the water starts to warm up.