over unders

I did these at 3:30pm, 95-97 degrees and humid using the crit course at Ault Park. I did 2 laps under and 1 over, 3 times the first set and 2 the second. This was close to 16 minutes on the first and around 11 minutes on the second. By the time I was done with those I was beat. I lost about 4 lbs and had two bottles on the bike. Here is the power breakdown: 327-377-328-371-322-376; 5 minutes off; 318-342-307-352; no HR monitor on but checking my pulse I was at 172+ on the last efforts.