I added the step box on my Classic this past winter during the Christmas sale. I love it. I covered the holes in the fiberglass using Marine Tex. Very easy to install. The extra storage is nice for small items like sunglasses, keys and wallet storage while fishing, camera, etc. The cup holders are very useful but a little wide to hold a coffee cup, water bottle, or soda can snug while running at high speed so I added some foam around the inside walls which is held in place with silicone. The box is more useful to me than the seat. When an extra seat is needed during high speed runs I place the fold down seat (without using the post) in the center hole and have the passenger face toward the rear of the boat. Ron