I currently have my FTP set at 280w. I think that may be a little low but haven't been able to test it in a while. Here is the power curve from the interval ride. Someone with an FTP of 220 can't push 300 watts continuously for close to 10 minutes...not possible...unless they have their FTP set low. Average/Normalized/Weighted power over the course of a ride where I ride in Los Angeles (with traffic lights, stop signs, people, cars) has very little correlation to FTP.