Carbon Paddles vs. Foam core carbon paddles

I had a customer e-mail me today asking if we stocked a certain paddle.  The paddle was the Carbon Shuna, and I thought I would put my response here for all to read.  The Shuna vs the Cypress, but the differences between the paddles would cross over to Werners other paddles i.e. the carbon Camano vs. the Kalliste, and the carbon Corryvrecken vs. the Ikelos:

"We do not stock that paddle, but we can get one in usually within a week. 
We stock the Cypress instead. The carbon shuna is 3 oz less than the glass one, 
but feels the same and runs roughly $80 more. The Cypress is the same shape blade, 
another 3 oz less than the carbon shuna but because of the foam core blade, it 
adds a floatation that lifts when in the water and has a kind of momentum lift 
out of the water making the paddle feel weightless compared to the carbon shuna. 
The paddle also has no spine, which the spine carries water on the back of the blade, 
which you can see in pictures as a pretty spray but that adds a couple ounces 
to the paddle blade, making a big difference in weight. The other advantages 
to the cypress has stronger braces due to the floatation, and more of a foil 
shape to the blade, giving sculling strokes much more pull. The Cypress costs 
$50 more than the carbon Shuna. Before you make up your mind, I would highly 
recommend coming in and taking a look at the Cypress next to the fiberglass 
Shuna"