I am much less skilled than others on here, but IMHO go with the 8'4". Most of the casting you do will be roll casting (if you want to stay out of the trees) and that few extra inches will give you the extra momentum you need to get some line out and a good presentation at a distance (relatively speaking). That said, the shorter rod would work fine too though and would be a bit better if you like fishing the tiny streams up high. I don't so I stick with the longer rod. JMO.