True Ames John Simon Type I Single Tab Quad Fin SetThe True Ames John Simon Single Tab Quad Fin Set (John's Quad Type I) feature relatively upright templates with narrow and blunted tips which are intended to create the ability for tighter arcs in curvy type waves. "They really help make my longer quad fin eggs, which tend to be in the 7'+ range, surf like they are shorter boards because of the tight turning radius and sensitivity they promote. They are also very functional on shorter, flatter, and