Rock n' roll, Royal Mounted Canadian! I love the idea of inlay/mosaics! Btw. I coated the back of the door with CA as early in the game as possible. I felt an immediate "strengthening"/stiffening. When I finished the rails, I coated those too. I cropped the corners (tips, tops&bottom cornerlets) of the rails to eliminate that breaking point. When the face was done, I coated that twice with CA (sanding to 1500 between coats), then finished it off with fine furniture wax (2 coats). It ain't perfect, and it ain't strong; but it's just strong enough for me to decide to go without backers on the subsequent ones too. You can't "skateboard" on it, but you can use it without fear (unless you're clumsy . . . . ., D,)
LOL. i truly appreciate the warning