Just came out this morning. Day before yesterday I sat on Texas Pass as the heavy clouds closed and the thunder ripped, gazing across the Barren Lakes at Illinois Pass. I had thought of heading that way, but the gathering storm nixed that idea. That was on day 29 of my solo trek in the much loved Winds. I climbed over Illinois in 2011. I have an excellent picture that will be of use to you, but that is not available to me untill I get home on the 20th. I'll post it on this thread. I consider that pass to be straightforward. A good stiff climb but nothing scary. I crossed from south to north during a heavy snow year. The north side, which is a much gentler slope was mostly snow covered, should be easy angle talus and ledge. It is the south side that probably concerns you. I walked up. The line I chose, which is not Nancy's route, did not force me to remove my pack. I did not like her line. That one goes straight up the east or right side facing north I believe. My line crosses from east to west/right to left through the rock filled breaks in the lower ledges then makes a east/right over and through the upper layer of ledges. When I had the chance to camp near Nancy out there in The Reservation last summer we discussed that pass briefly, as well as some more remote difficult areas that are of great interest to me. I did a big one this year, Klondike/Pedestal Pass, now that was rugged, nearly 4000ft down, mostly boulders with some high angle scree at the top for extra fun, from the divide to Three Forks Park. Back to your pass, I think I recall she did mention passing packs up and scrambling ledges. When it is in front of you pick your best feeling and climb it. I hope you have a super trip.
Take Care, Eric