I did something similar last year. I had established a very good base then raced hard for 3 months, tapered, peaked, then I took a week REALLY easy to avoid burning out. Then I pretty much murdered myself for 3 weeks with high volume and high intensity. I did 16, 18, then 21 hours of tempo and threshold work. Then I backed it off to 10 hours per week of easy rides and 1-2 interval sessions per week for maintenance. By the end of the block I was flying and set season best wattages in every range. I set a 5 minute that I've still never beaten.