I spoke with the Edmonton Garrison Fitness Center. They put me in touch with a personal trainer who works with people preparing for the fitness evaluation (including the step test). I actually booked an appointment with her to do the entire fitness eval and the step test to see where I am at. I currently am huffing to get the 2.4 km run done in 15:20 (used to be 20 min a month ago!)so I would like to see where my VO2 max is. I will use this as a baseline and in a few months compare it to a retest to see how much I have improved.
From what I have seen, just because you can run the 2.4 km under 12 min, doesn't mean you will pass the VO2 max test. So it might be worth while booking an appt. with one of those trainers to see where your VO2 max is. In addition, if you are in shape, it might be nice to see if you can work on your VO2 max even more to get up to the superior level and not "just pass."
I was also told that there are MANY people who do not look in shape who pass the VO2 max test. Which is nice to know as I have been able to improve my cardio faster than I have been able to lose weight.