Turbo Fire Question

Are there any Turbo people that find out of all the HIIT workouts that number 20 is nothing? Meaning that it doesn't feel like your burning as much cals or breaking as much of a sweat as the other HIITs?
I recently bought Turbo Fire and I must say, I LOVE IT, and I love Chalene. She is so encouraging and motivational. I really recommend this workout.