I can throw a 12 foot banana with the best of them. I share a bit of my experience with cast netting for shrimp on the Georgia coast. My parents lived on Colonel's Isle for many years. My uncle Allen Branch (11 years on the Southeast Atlantic fisheries council) and my father were habitual cast netters for shrimp in the salt marsh rivers inside of Ossabaw and Sapelo islands. Their net of choice was a 3 footer, maybe 3.5 foot nets. Cotton was their fabric. They liked to dip the nets in some kind of preservative that made the nets stiffer. Mono was not preferred. The process was to wait for the outgoing tide when the water would begin to recede out of the marsh grass. Then row the boat along the water's edge and net the shrimp as they migrated out of the marsh grass. You could fill a #3 washtub with shrimp in less than an hour. Depending on different factors the sizes would run from small to extra large. The small net made for easy work to catch the shrimp congregated as they emerged from the Spartina. You could throw, dump and reload with ease. The joy of catching a dozen or more 12-16 count shrimp in every throw is a memory cherished by me. Restrictions were placed when commercial men would use 12 foot nets and wait at "holes' in the marsh rivers to form and catch hundreds of pounds of the concentrated shrimp. We would work around the clock, day and night to catch the low tides, catch shrimp, head and put up the catch in cartons for freezing. Get some rest and repeat.