Dear Mr Allen,
I would like to thank you for the personal email you sent me. I was very excited when I saw that you sent me the "March Power Tip."
Unfortunately, I have rather bad news for you. There really isn't such a thing as "Anaerobic Capacity repeatability." There is Anaerobic Power and Anaerobic Capacity. What you call "Anaerobic Capacity repeatability" is really... Anaerobic Capacity. What you termed as "endurance at Anaerobic Capacity" is again... Anaerobic Capacity.
Your strategy to build Anaerobic Capacity is of course debatable, since for example, I would take the opposite route. But I admit that I don't have any evidence pointing to the validity of either approach.
Other than this, I really enjoyed reading your email, so thanks again!