Originally Posted by
Seattle Forrest
I went crazy fast coming down from Barlow Pass, and that one time in my entire life when I had a tail wind. I was going slower than a grandmother up the road to Slate Peak. Because I have a power meter, I can compare my performance on both days and see whether this creatine stuff is working.
You are a very experienced cyclist, I expect you know well how you are doing without a device. As I posted, many say they can. The fastest say they can.