Farrelly Cutaway Fins are now available in both 10'' and 12'' - to fit standard 9mm wide fin boxes. The fins come with a stainless plate and screw. The 12'' fin is used as a large single - the 10'' can be used with small side fins.
The current Cutaway design is an updated version of a 1960's fin Midget used on his '67 Vee Bottom (pictured below). Widely copied and relabelled, the fin fullfills two functions. Turns that border on drift (less lateral resistence) and a bulbous tip that will hold a nose ride.