Everything that follows is on the basis that my power meter is accurate…
I have been doing a lot of 4 plus hour road rides recently, nothing structured just blasting about, and my IF for the ride is consistently over 1.10, sometimes as high as 1.3. VI is usually about 1.30 and NP is always well above the FTP from my last test. There are no long coffee stops or anything, just ten minutes to refill bottles and so on.
Is this an indication that the FTP I have set in TrainingPeaks is too low and it is time to reassess?
Thanks!