I have now a lot more experience paddling with my Ikelos and Kalliste paddles since I last posted. And both are amazing. I use my Ikelos more often and let my girlfriend use the Kalliste. The Ikelos is a high angle paddle and definitely gives you more speed but is more exhausting to use. I used it just the other day on a 16 km paddle and could feel the difference on my muscles at my shoulders and in my abs and obliques (not sure how that is spelled). I feel that both paddles were a great investment for me.
It is amazing how light they are.
Cheers