I did it last in 1997. We did day 1 from the trailhead at Snoq. to Gravel Lake, a long day 2 from Gravel Lake to Spectacle. Another long day 3 from Spectacle to Waptus. Waptus to Peggy's Pond on Day 4. Day 5 at Marmot Lake or somewhere near there. Day 6 out to Stevens/Hwy 2. I would recommend trying to find somewhere to split up the long hike between Gravel and Spectacle, and Spectacle and Waptus. Pete Lake maybe an option. We also chose to diverge from the PCT from Spectacle to Waptus by going over Waptus Pass as it puts you on the east end of Waptus Lake and saves a tedious hike down the lake to then be able to get up towards Deep Lake. Peggy's Pond was my favorite, greatest view from a pit toilet I've ever had, and its pretty easy to bag a few peaks in the area (Mt. Daniel, etc). We did it in mid August and it was all snow free.