I am unsure what setup to recommend to a relative who fishes a very particular kind of environment. They are interested in local lakes where wading is possible, but with almost no room for a backcast as the banks are lined with branches. They can wade out a couple of rod lengths and work their way along the shoreline. Right now, all they have to work with is a short 5wt fiberglass rod. I figure a 9'-10' 6wt would serve the purpose, but what line would allow for the most effective roll casts and/or single hand spey casts?