do fin systems matter?

[sinistapenguin]

What in god's name is this:

[Dopey]

[Brent]

That, young man is a TunL fin from Australia. Been on the market for about 2 years. Failed design.

This is the fin Roy was defending as a "tunnel fin" months ago. Thinking it was like his tunnel designs he makes for his longboards. Despite the fact he'd never even seen one.

They're poorly made moulded plastic, the one I tried didn't even face straight ahead...bout 2-3 degrees to the right. It was noticably draggy and I could feel it under my board when I paddled it.

As my shaper joked when he tried it "why not save yourself a whole lot of money & tie an old bucket to your legrope & just tow that around instead"

[k mac]

As my shaper joked when he tried it "why not save yourself a whole lot of money & tie an old bucket to your legrope & just tow that around instead

funnily enough qouted thatsomewhere yester day !

[HybridLvr]

What does the center fin do? What do the side fins do? Which one(s) matter more?