My Dynacorn R type valance arrived today. Looks and feels like a fairly solid piece but not sure about fitment yet. When I have a go at installation I'll post some info on how much tweaking it needed. Surface is smooth and it's definitely an injection molded piece (says fiberglass/plastic on the box). The anchor tabs on either side are either epoxied or glued to the valance so hopefully no breaking loose down the road. Seems good out of the box.