They require a few modifications to be really nice. One of the members on ISSF did a set and a thread on it. They come with bolts bondoed from the inside. The threads will cut your metal...if you use cutoff bolts with a shank to replace them, it makes a smooth pin. He also got a second set of push pins for added stability. He put the pins equally spaced along the top/ends. You have to get the ones for the RM, because they have the trim line along the top to match the trim on the sides. I believe he also put metal trim pieces along the top of the skirts. You could use chrome tape for a cheaper application.