These fins were designed to be used primarily as a single center fin. A great option for areas that have shallow water, or any kind of floating grass or kelp, as the SWT will effortlessly glide through thick mats of grass, and it has the ability to transition the shallows near shore without hitting bottom. Despite its shallow draft, the SWT is designed to paddle a course with less effort due to excellent tracking, and its enhanced glide will have you doing less side-to-side paddle exchanging. The bottom line is that compared to the fin that came stock with your board, this fin will have better glide, tracking, and shallow water ability. The SWT is a must have!!