I'm wondering how deep of water will bass seek out during the winter months? Will they seek the deepest water in the surrounding area? Will they move to the nearest deep water cover closest to their spawnig grounds?How far will they travel to find this water? Will a field of stumps in 18-20ft of water suffice if the main body of water channel is say 30ft? I know that's a lot of info but any insight will help. Thanks