My impression is you shouldn't get hung up on times/details, but rather run by feel. the point is to get in the best shape as possible with minimal physical and mental effort. Keep things fun and low stress, get practice running fast and relaxed, and run often:
"Emphasis on RELAXED and emphasis on COMMITMENT"...
"Q: What should my heart rate be?
A: I don't have a clue. I'm trying to get you to "feel" Kung Fu, not "think" it."
"You determine what you want to do; these are just recommendations."...
"Q: Go over that again?
A: (1) twice-a-day, as many days as you can - four, five or six days a week (2) increase your mileage, look, you guys are made of the same muscle and bone as me, you can do it. Find your own sweet spot (3) meet with a group twice a week (4) one tempo run of just four to six miles and (5) one workout of 1200m to 2000m repeats OR 16 to 24 by 150m to 300m (5) don't try to impress anyone, run within yourself (6) relax, the real training doesn't begin until September.