I'm looking to solo Grand Teton in a few weeks, going up the Owen-Spalding. I was looking for some updated info on the rappels. I've read in a few places that the upper, longer rappel can be done with a single, 60m dynamic rope with rope stretch. I've also seen some info saying that that rap station has moved and now requires two ropes. I'm hoping to rappel on a 60m, rather than a 60m and a tagline.
Also, does anyone have any info on the conditions on the OS as to snow/ice? Looking to climb the last week of August, but I see the upper mountain has gotten a few inches of snow.