Do any of you guys use them and how do you all feel about them? When I go over potential spots with my depth finder I try to mark its location using landmarks on the shore. Then anchor my boat upriver from that location and fan cast back to it. I wonder though if I could be a little off from where I want to fish using this method. So I was wondering about marker buoys. It can help me pinpoint the exact spot I want to fish or a certain depth range I can anchor in line with where the fish are. My only concern is dropping this buoy right on top of the fish and spooking them. What do you all think?