j7 surf designs
Swallow tail fish:

Perfect fish for the summertime or smaller surf. A clean, full outline and foil with low rocker enables this design to accelerate in the slowest parts of the wave while keeping plenty of rail in the water during open face turns. Moderate concaves and a slight Vee off the tail provide lift and quick turning ability. Works well as a thruster.

Single Wing Swallow tail:

Another fish design for the summertime or smaller surf. Similar to the board described above but with a single wing to serve as a breaking point in the outline. This allows a little more snap at the end of a rail turn. Try this in a twin fin or thruster.

Wide Squash Tail:

Moderate to low entry and exit rocker for flying through slow spots. But, still maintaining a fuller shortboard outline for fitting well in the pocket and lip. Single to double concave with a hint of vee off the tail block allows plenty of speed while going on rail with little effort in the small stuff.

Wide Swallow Tail:

Ideal for any small to medium sized waves. With many of the design aspects of the Wide Squash tail, this board maintains the highest performance when the waves are little small but still have a little pocket also holds well as the waves pick up and become a little more critical.