While in an aerial it looks like a wye is possible, the change in elevation is about ten feet making such a wye impossible to install. Also, I don't want to make it possible to turn the 58 around. I want to keep the firebox end on the downhill side at all times as a safety precaution to help prevent going down a hill with a low water level and uncovering the crown sheet.

This is my latest youtube video talking a bit about the latest tweaks to the 58 and the upcoming Eastern Branch project.
https://youtu.be/p9LcNU6nwzc