Hi Spicol,
I did the WUT third loop on the August 6th weekend. I went clock-wise, taking the 'shortcut' portage to Lady Slipper Lake and staying overnight on South Pincher. The trail was in very good shape, with only a couple of fallen trees to contend with. The Rain Lake access point was super busy, and parking was very challenging (vehicles were parked in every imaginable way). Rain and Islet were abuzz with hikers and canoeists, but it was much quieter on other parts of the trail (I only met one solo hiker and a trio outside of the Rain/Islet range).
Cheers,
Rich