I know I can call the respective businesses to get the answer but thought someone here might have already done that. I after searching previous threads and finding no answer I'm asking now: "Does anyone know the respective or comparative weights of the Seal Floorboards vs. the closed design Web Boards for the Spyder RT SE?" I know the closed design web board is made of aluminum and is 1/2 the weight of the open design but am wondering how it compares in weight to the Seal Board? I'm talking about the big, full length boards with the bend up fronts.