I've only boated Hells during 9,000 CFS middle September Flows. Its in the 50 and 60K levels now. I am planning to run it in one day next weekend with my friend. I wanted to bring my 14 and 15 year old kids and let them pilot their own boat. I watched a video of someone doing it last week and a lot of the bigger rapids like wild sheep and granite looked washed out, like big wave trains. Has anyone done Hells at high flow? What are the big rapids like, class 3 or class 4? easier at higher flow or harder?