I just ran across this thread. I used Trim-Lok DRB-25 from Amazon with some rain gutter down spouts by Camco.
My rig, 2014 Hurricane 32A. I placed a strip along the drivers side to the rear of the slide-out, one above both the drivers side window and passenger side window. Also place one short (about 6") piece between the end of the awning and the awning support with a stubby down spout. The water and dirt that is caught by the awning seems to create a big drip line down the side in this area.
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