so when you go to improve on this workout , would you first increase the incline or increase your pace and get better at that before you would up the incline? just wondering if I should focus on getting faster on a 4% incline or climb higher. I kind of think the incline is helping me become a little faster, too early to tell but I ran 4 miles today outside and did a half mile sprint at a 7:22 pace and then I sprinted a 1/4 mile around the same pace. I wont really know if I am getting results until I try to maintain a faster pace for 2 miles or so. man does the sprints wipe me out. also how many times are you guys doing cardio coach workouts a week without considering it to be overtraining?