Hi Greentea, I agree with LucBenac, I would also increase the surface of the blade if you are using it for sup surfing (around 500 sq cm). If you use it for races I would keep go for a smaller blade (the 460 Salish). My experience is from different blades like probably everyone that used a paddle but I enjoy the Nootka a lot for it's weight and blade size. The flex is moderate, but more flex than the Blue planet that is laying next to it.
Paddles are always a personal choice and preference. There are good paddles out there, also from unknown brands or where you are not yet heard off. What do you use now for kind of paddle? How much flex do you want? What is your paddle cadence (slow, normal, fast or extreme fast), how often do you go? ect. with those questions answered can you determine the paddle size and brand better.