The re- emergence of the 2 + 1 concept has taken hold the last 10 to 15 years and there are many versions in all lengths and shapes, notwithstanding becoming a standard on most longboards these days.
The cross between a single fin and thruster is really what a 2+1 is, however it has a distinct advantage over the thruster in that it is not as tail centric as the thruster since it has the luxury of a deeper centre fin that can be moved off the tail and placed further forward allowing the surfer to surf further up and having more sway over his nose. This means there can be more area forward in the nose and it does not feel front heavy and can be pivoted on impulse. Having that area forward gives more drive and also enhances the paddle in process allowing you to keep short if you are indeed a minimalist. Obviously the fin box allows the rider to adjust the level of pivot and drive he may need in a variety of conditions.
There are many varieties of the 2+1 concept and this one will be just one of many I intend to design in the future.
DIMENSIONS
6.1 X 19 9/16 X 2 5/8 = 33.4 LTS
ROCKER .. Low nose entry and low tail lift
RAILS…Low Box
PLAN…. Area forward
BOTTON….Con Vee
TAIL…..Flyer round tail