You may have done this but I'll tell ya anyway. I've found if you can't get fish to bite and they should be there, and then you finally get one to go, stay on that same troll in the same depth of water. If you were going west and the current was pushing your baits south, your baits weren't running correctly, hence no bites. When you turned south, the bait probably ran with normal action like it should have and you picked one up. I can't tell you how many times troll direction and current can make or break a fishing period. Just my two cents.