As the field guide says, it is indeed "rather arduous", at least the first section on the Green Canyon trail. Thank you, by the way, to bobcat for the awesome field guide entry - I printed it and took it with me, and I never had any doubt about which way to go.
I got a pretty sweet view once I reached the top of the Green Canyon trail:
After the junction with the Hunchback Mountain trail, the hike was relatively easy other than the absurd amounts of blowdown in some sections. None of it was particularly difficult to get over, there was just so much of it - there was a mile or so stretch where the trail was blocked literally every few feet, I felt like I was competing in a hurdle event.
Spent the night at the lookout on Devil's Peak, which definitely has a rodent problem but was otherwise pretty nice. I woke up in the morning and went to put my glasses on and a mouse had taken a shit right on the lens
Two guys showed up at the lookout at 1am (not sure why they were hiking around at 1am, but anyway...) and woke me up, but they seemed really nice and I didn't mind sharing the space.
Some pretty amazing views from the lookout deck:
The second day was much, much easier than the first, even though I covered more miles...from Devil's Peak to Kinzel Lake trail to Salmon River trail is all pretty easy hiking and I powered through it in a few hours. I was in more of a "get back to the trailhead" mood by that point than a picture-taking mood, so no photos from that section...
Note that water was definitely scarce; 3 of the 4 springs on the Hunchback Mountain trail were dry, and the fourth (about midway between the Green Canyon junction and Devil's Peak) was a trickle. Luckily, some awesome person had left a 2.5 gallon jug of water in the lookout and I filled up one of my bottles from that. I didn't hit a really good water source until the Goat Creek crossing on the Salmon River trail; even many of the smaller creeks on the Salmon River trail were dry.
All in all, I was really glad to get another backpacking trip in before the rain starts in earnest...3 nights would have been awesome, but 1 night is better than none!
Last winter there was water running down hunchback trail in sections and the entire kinzel lake area was a swamp 
