Re: What's with these flat-bottom mooring buoys?
Maybe the benefits stated in the ad???
Jim-Buoy Pendent mooring buoy. 18÷ buoy with 2÷ tube diameter. Flat bottomed high density polyethylene hard shell keeps mooring/pendent line dry, and protects your boat from contact with mooring hardware. These pendent buoys won't roll over, are stackable, and have convenient lifting grips.
s/v My Sweet Girl!
Catalina 30 (Mark I)