Great climb. Followed the route you describe on the way up but dropped straight down to the trail below from the saddle of Grinnell. In early July there was a great snowfield ~1500 feet that really sped up the decent.
Swiftcurrent Glacier Basin Date Climbed: Aug 22, 2009
Solo trip, originating from Many Glacier Hotel. Slogged up to the west ridge from Swiftcurrent Glacier Basin, reached the summit in about 5 hours. Didn't spend much time on the summit, as a firm, cold wind was a-blowin'. Took about 9 hours round trip.
"Got tight last night on absinthe and did knife tricks. Great success shooting the knife into the piano. The woodworms are so bad and eat hell out of all furniture that you can always claim the woodworms did it."