It was going to open into the main room. Now it opens into the vestibule. Since it’s right hand door the entire jamb had to be spun 180-degrees (again, entirely due to the assymetry of the wall section with a single layer of drywall on one side, and the double layer with an air gap on the other which locates the 2x6 studs off-center to the door jamb). So now it not only opens into the vestibule, it also opens opposite the exterior door. To put a finer point on it; You’ll walk in the exterior door, step in and to the right, close the exterior door, swing the main room door open and enter the studio. If it were just that it opened into the vestibule, but the lever was on the same side as the exterior handset it would be a much more ergonomic move. Additionally, now I can’t access the side of the vestibule intended for the drum rack while the main room is open. Enter vestibule, close door, take drum off rack, back up across the entire vestibule to clear the door, open door, take drum into studio, repeat as needed. This is a major loss of functionality.