The data I'm asking for is there. Maybe I didn't ask the question the right way as the data I'm after really wouldn't be FTP, but your average watts for specific cadence is there. I just don't have of the software to extract such data.

I'd imagine this data would be valuable to the pros. They would need to know (from past performance) where they generate the most power. I'd like to know this so I know exactly how much worse my power is at certain cadences so I'll know better how to train.