Developing MCT1 and MCT4 significantly elevates the fractional utilization of VO2 max. Highly and properly trained endurance athletes can have an FTP that is 90% or even 95% (older athletes) of VO2 max. Most training programs go about that all wrong.
This is the guy to look up.....ISM
https://www.trainingpeaks.com/blog/w...ate-threshold/