I also think 255 is probably a bit high. Take a look at the cumulative six weeks power curve. At 1 hr, Dunbar is right at 200 watts, substantially below the tested 255. That supports the theory that Dunbar has a good ability to use anaerobic power to maintain a higher power output over a shorter interval effort and helps explain why he is having trouble maintaining a conversation during what he describes as moderate efforts.

Also, and this needs to be said, FTP is nothing more than a point for individual measurement. I have a rather low FTP, but it has not held me back in racing.