got a question: so if based on my ftp, the top of my vo2max zone is 300 using the Coggan zones, and I can exceed that for 3 minutes, does that mean my VO2Max is improving? Today, for example, I avg 317w, 324w, 308w, 309w over various 3 minute climb. I'm assuming that someone can sustain the top of their vo2 for 3 mins at a time, don't know if I'm off the mark with that or not