I was out with a cycling friend of mine & told him about this thread. He laughed & said that it sounded like people were too focused on FTP, how to determine it etc (because I put the focus on FTP) and were ignoring the ride that I detailed. He said that if I was able to go at above my best 20 minute wattage for 15 minutes & then pull off 15 intervals that peaked at 700 watts in 5 minutes and increase my overall average wattage on the ride, I was doing something pretty good. He said I should skip worrying about FTP and just ride with that kind of power & variability in my shortened rides during the week and concentrate on long pulls of high power zone/high HR zone rides on the weekend.