I bought a Saito91 with a 13" prop. I have been told that a 14x6 prop would be best. The problem is the spinner side cutouts are too small for the 14x6 prop. I would prefer not to cut the spinner sides as balance may suffer. Is there an alum. spinner with side cutouts that will fit an APC 14x6 prop that fits the Saito 91 (without cutting the sides)??