I have fished in that area only twice and have limited knowledge but if you are willing to drive a little farther I would recommend you try the Upper Chattahoochie River campground in the forrest just north of Helen. I had the 34 site campground to myself last July (a Mon-Wed stay) and the Upper Chattahoochie River runs right next to the campsites, and it is skinny water
. Jimmy Harris at the Unicoi Fly Shop pointed me in that direction and gave me some good pointers for the area as well.
River view from camp site
stream improvements by NGTO and local TU chapter
Good luck, Enjoy and post a follow up report when you return