I didn't have this image and Beta when I did the Banner / Ritter dayhike last year and therefore lost a couple hours (and lots of good vibes) trying to figure out how to get down from the SE glacier route back to Ediza. The 2nd / easy 3rd descent is trivial but finding it based on the sparse info available is not (people who wandered straight to it will never understand)! If you're planning to be on a 12 hour pace, shoot for 2 hours to Lake Ediza from the Agnew parking lot (pace for Sierra Challenge 2010 and 2011) - if you take 2.5 or 3 hours you're in for a looong day! Have fun!
JD