[Paddlewise] Rudder Styles ?

I am currently shopping for my first sea kayak. Actually my first 'yak. The 
model I am considering is the VKV SeaGull "Ocean" (www.vitudden.com). There 
are two different rudder styles available.

The first is rather long and narrow. When UP it rests on the stern deck. 
The pivot point is at the top of the boat.

The second choice is more of a square. When UP it is parallel to the water 
and sticks out from the back of the boat. The pivot point is at the bottom 
of the boat.

So, I am asking for experienced opinions regarding the pros and cons of 
these two styles.

THANKS
- Hal

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