Colorado blade is what the standard RR comes with, that is why I went with the willow blade this time (Also i wanted to take a step down in the size of the RR, hopefully allowing me to retrieve it slower). My theory was the Colorado blade was too big and hitting the large profile body, which is why i opted for the slimmer willow blade, however one thing i am gonna do this year and get interchangeable blades for the RR so i can better match it with the body profile that is attached. I didn't think about swapping out blade types on the RR until a few months ago.