Outdoor VO2 Workout

[Pbase]

There is TONS of good advice on VO2 in this thread, including from some great coaches. I learned so much from it.

What would a custom VO2 max progression look like?

Starting into my IM MD training block in 2 weeks, and I would like to start on a vo2 max progression to get me started. I am thinking of 3-4 weeks with 3 vo2 workouts per week. Would you increase interval duration inside each week or change total work per workout within the week?