Nice!
From the Prow, I watched two skiers come down Emmons around 3PM on the 3rd. Lower part looked nice. Cloud deck at 12K kept me from seeing the whole route. I recall thinking that the corridor did look pretty damn narrow, narrow enough that ski tracks are going to get pretty bunched up in there.
One thing I shoulda mentioned in my post on the other recent Prow thread: wading the Inter fork isn't really necessary, even thought that seemed to be the herd instinct. You can just follow the summer route to the Basin camps (switchback right at an obvious point where there's usually a sign or flag or something, gain about 100ft up a small drainage and then traverse). After reaching the camps there's a decent snowbridged stream crossing of Inter fork 200yrds upstream, just at the start of the ugly moraine. Least there was last Sunday. That's what I did, no wet feet or garbagebag improv required.