I do not use my float, because it makes the mast heavier when raising, and it is not class legal. If you are learning to sail in windy conditions, I would recommend a float. If you have lots of debre (submerged trees) or a shallow lake, a float will save you lots of grief. I torn both of my sails twice learning to sail my boat, and my new white sail has mud stains on the head. A float is much safer.

David