I'm not an expert, and I don't know the Sky, but I did very well last winter with the low/clear water we had, fishing the Clackamas and North Oregon Coast. Far and away, float fishing worked best for me with 1/8 and 1/4 oz jigs. I cannot think of a single fish I hooked in a riffle. The best areas were current seams, around boulders, and deep pools. I believe riffles are best for summer-runs. I did take a few out of choppy tailouts last winter, but I wouldn't call it "riffly". Hope this helps.
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If every fisherman would pick up one piece of trash, we'd have cleaner rivers and more access.