Once the blades are lined up center in the foot pockets, drill the required holes and install the hardware. Be careful not to accidentally move the positioning of the blade before drilling the holes because this will make the fins uneven.
After drilling the holes, install the top receiving plate in the top side of the foot pocket.
Place the bottom side plate on the bottom side of the blades, with the thick side of the plate facing the end of the blades and the thin side of the plate facing the foot pockets.
Install the screws while applying pressure to the top side receiving plate so the screws will not push the top side receiving plate out of the cavity. Notice my fingers on my left hand are under the fin, pushing upwards on the top side receiving plate while I am installing the screws.
Apply a liberal amount of food grade silicone to the entire length of the first low profile fin rail. This will make the installation process very easy.
Bend the foot pocket arm back to increase the size of the opening in the foot pocket arm and press the foot pocket arm while moving back and forth onto the fin rails. Continue this process until there is 3 or 4 inches of foot pocket arm left to be installed.
Repeat the process by installing the other foot pocket arm onto the fin rail.
Install the retaining clips. This is actually a 2 step process so we will break this up in two sections.
NOTE: THE RETAINING CLIPS ARE FORWARD / REAR FACING SENSITIVE.
You will need a flat head screwdriver and some technique for this process. Catch the opening of the clip on the groove of the foot pocket while placing the flat head screwdriver in the slit under the clip. Pressing hard and STRAIGHT DOWN on the clip will expand the opening. Continue to press downward (NOT WRAPPING IT AROUND YET).