I do not have a dog in this fight... as I have never raced a course with a pinwheel Pinwheels Have No Business on CX Courses www.facebook.com my guess... they are awesome and people are complaining because they suck and want a straight course so many racers hate technically challenging courses too often rain and mud scare registered racer away and keep unregistered racers home in bed I would like to see a race course with multiple pinwheels!