A paddle for a plating system has a housing with a back portion, a front portion, a first side portion, a second side portion, a first end portion, and a second end portion. A first fin is disposed laterally along a first external surface of the first side portion and offset and coupled to the first external surface to define a first passageway between the first external surface of the first side portion and a first internal surface of the first fin for flow of the electrolyte through the first passageway. A second fin is disposed laterally along a second external surface of the second side portion and offset and coupled to the second external surface to define a second passageway between the second external surface of the second side portion and a second internal surface of the second fin for flow of the electrolyte through the second passageway.