Likely low to moderate. (Best flows uncertain! Please help your fellow boaters by adding a comment about best flows, and class/difficulty at various flows!)
The Cornsheller rapid on the South Fork Flambeau presents a consistent playwave with clean, surfable features that offer kayakers a reliable opportunity to practice wave techniques. While specifics about precise difficulty are limited, the wave appears to provide a predictable hydraulic environment suitable for intermediate paddlers looking to develop playboating skills. Paddlers should approach with standard wave surfing caution and be prepared for potential river-specific variations in water levels and wave shape.