I, and two other local RV8 builders have used screws to attach the canopy and skirt to the canopy frame. We used #6 screws. Once everything is screwed on, we turned the assembly upside down and glued the canopy to the frame using proseal. This method holds the canopy on with two fastener methods and leaves the skirt removeable. Depending on who you listen to, make the holes in the plexi up to 1/3 larger than required, for expansion; however, I didn't make mine quite that large. My constructions is new; however, this method has held up well on my friend's RV8 for several years and looks great.