I’m uncertain if this variation of the headwall has a name but the route photo shows exiting the headwall to climbers left in a wide open chute closer to the summit than the wallace-Olson chimney. The wallace-Olson exit is in the center of the final cliffs through a narrow weakness and when dry or boney truly feels like a chimney. There are some nice photos in prior TR’s; and I think there is a photo with the final chimney pitch in the background in my partner’s CC TR a few days later on 2/18/22. And here are a few more photos I have collected from friends over the years showing it in various different conditions. In the overview photo I think the wallace Olson is approximately at the green arrow. Yellow arrow I think marks the route in this TR.