I had to pick some stuff at Wal-Mart today and made a swing through the fishing aisle. I saw a new type of float in the crappie section that I hadn't tryed before. It is called a Slip & Grip float. Apparently you twist the small knob on the top of the bobber and it will either grip the line like a fixed depth rig, or you can twist it the other way and it will slide like a slip float. Sounds like a neat idea to me. Anybody ever try these? (And they are made in the USA -Omaha Neb by Premier Plastics.) I don't have any financial interest in this, other that to ask if anyone has ever used them.