Hatch Tape Fin Box filler

[Glowmaster]

So as a long time windsurfer I always had less spin out with a fin box filled to prevent turbulence.

It was hard at 30 mph most things got sucked out and off.  But at SUP speeds I found a tape that works for 6-10 sessions and is easy to use.  It is called hatch tape

http://www.amazon.com/Atomik-RC-0864-Waterproof-Hatch/dp/B002VARLPE/ref=sr_1_1?ie=UTF8&qid=1409411854&sr=8-1&keywords=hatch+tape

This is how I use it.