Originally Posted by Hermes

My guess is that it will not take much additional time in the saddle to give you enough endurance for a better century outcome. I find that if I am peaked at the top end of the power curve with a pretty good depth of interval work, then my endurance is also good - high intensity floats all boats. The problem is lack of saddle time. To say it another way, my mitochondria in my slow twitch muscle are primed and ready to dance. They just need some longer practice sessions. And I need the touch points on the bike to HTFU for longer rides.