wing shape
"parallel edge"? tear-drop?
What difference are they suppose to make, in what applications?
love my wing
It catches so well but I pad the shaft with whiteethafoam. Pieces are one in by 6in, at the push pull part of shaft, as an index so your hand knows where to be and to give illusion of flex. Wing catches so well it can stress joints. www.kayaksport.net has free video I like the long narrow turbo wing