The South Fork is fishing well. Flows are really low and floating long floats is not recommended. Floats that you would want to do is Dam to Huskies, Wolf to Byington, and Lorenzo to Menan. These stretches are very floatable for a day trip. Floats much over 5 miles is not recommended because it takes so long to with the low flows.
Fishing is basically nymphing with rubberlegs, bead head nymphs, Zebra Midges, Glo bugs, San Juan worms, and Trout Beads. If you get into a whitefish hole just move and find another deep slow moving hole with trout holding deep. Also later in the day you will find whitefish and Trout sipping midges on the surface. No Blue Wing Olives yet, I would expect them later in April. Call the shop if you have any more questions.