I downloaded his Strava gpx file, and set it up to display on Gmap4.
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Note that his gps threw a number of bogus locations near the Notch. Makes it appear that he climbed the summit several times.
As for the alternate route that he was considering above Lower Boy Scout lake, (and did not take on this track), I really don't think it would make any difference in distance.
Just below Iceberg Lake, he used the tougher seep climb on the way up, and on the way down followed the easier route a bit west of the seep. If you switch to the satellite view and zoom in, you can see it pretty well.
