Depending on the weather I will be be out hiking parts of the Neusiok this Sunday/Monday. Will let you know what I find.
The Forest Service supposedly hired a group to do trail maintenance. There was a fire this past spring in the Pine Cliffs section that cleared out alot of underbrush but left the trail and shelter alone.
The section I call "The Pines" (10 mile section south of Hwy 101 to Mills Creek) is the worst for mud and probably the section you are referring to.
Check out my site at www.neusioktrail.org and forum where I post about the trail. New posters to the forum are welcome.