How to Describe a Longer FTP Test

The highest I've seen is about 97% in my experience. So that's saying you might be more like 96, 97, 98% and so that 20 minute number might actually be even closer to what your FTP is. People are doing as sweet spot work, thinking that actual threshold work is too hard on a person to do intervals. Like, I think that they're actually riding at their FTP since their FTP is overestimated.