I participated in a group workout last night. 6 x 1.2 mile ITT's on the road bike @ L6 or Z5b. Our coach set us off with 10 -15 seconds on the guy behind to keep the efforts honest. It hurts to clear my lungs or take a deep breath today. On interval # 1 I had way too much adrenalin. Data shows that I averaged 698 watts for the first 45 seconds, then suffered dearly, and nearly had to piss myself once backing off at the end of the interval. I metered the effort much better on the remaining intervals.