One other potential benefit of the Kelty's dual door/vestibule design is that it might also satisfy your desire for a "bike garage" as you indicate in your other thread. You might have to flip the bike upside down to match the sloping fly, and tie-up a wheel to a corner pole for stability, but I'd bet it would work fine. You really don't need two large doors/vestibules while solo. I gotta to admit that I love having my bike totally protected from weather and theft when it's inside the tent with me .