I know you asked about the quickblade. But this is my preference from experience with both brands.....
http://www.kenalu.com.au/paddle-tips/choosing-and-configuring-your-ke-nalu-sup-paddle/'I have know personal affiliation to this brand/product, apart from owning the product for the past 3 years....'
I own the Elite Wiki with 90flex shaft and ergo tee handle for surping and Elite Maliko with 90flex shaft and ergo tee handle for downwinding.....
My personal opinion is. I love the catch and release of both blades through the power stroke and the 90flex shaft gives the feeling of easing the load on my joints and muscles without lose of power in the water. Ergo Tee handle is my preference solely based on comfort. The best thing is, all components are interchangeable by using a hairdryer/heat gun and a hot glue gun....
Happy paddling!