Gary: I like streamers best in the spring and the fall. One of these days I'm going to get out and use streamers while night fishing. I mainly fish from a drift boat so I use a sinktip line with a fairly short leader, 10 lb mono. I don't think the fish are leader shy when fishing streamers, especially with high water. The stout leader helps when you get snagged on shore. I like to drift along and pound the banks. If the fish aren't biting I try to vary the retrieve rate and the amount of time before I start retrieving after the cast so I'm covering more depth. I think streamer fishing from a boat is so effective because you are covering so much water. There is a FF DVD on the South Fork that was done with the Hyde family (from Hyde Drift boats). If I recall correctly, the film was shot in late summer, the gal in front was throwing chernobal ants at the banks and the guy in the back was throwing streamers and they were both catching plenty of fish.
Last year Davo and I did a float on the South Fork near Swan Valley, ID and the water was pretty high (13,600 cfs). I think it peaked at around 27,000 cfs later in the spring. We put in at the boat ramp behind the South Fork Outfitters Fly Shop and floated down through the canyon roughly 25 miles to the Byington pull out. Previosly, the longest float I had done in one day was around 13 miles so that gives you an idea of how the river was flowing that day. I landed six and Davo landed 13, we both had numerous LDR's during the day.
Larry