Nice video except that it’s missing two factors- For those of us who are removing existing windows to install, how critical is it to have the old urethane completely removed? It’s practically impossible. At the same time, the factory urethane isn’t in the same position as the new glue. It’s slightly farther away from the edges. So, if the old adhesive has been scraped down and thin as is possible, should it be ok? Second, nothing about the install on the alternate, powder-coated interior piece. The box includes a TERRIBLE one-sheet photo. Had I known that piece requires drilling new rivnuts I’d have gone with the canvas, as shown in this video. Cheaper and cleaner.