Hi Al, I had the same concern but in reverse. I have Bud's stern pulpit installed and when I asked him about drilling the additional holes for the Aries his reply was as follows: "I think you are stressing too much. Just mount the brackets where they will fit, and bend the 1-1/2" tubes accordingly so that they will be the correct distance apart to fit the Aires vane. After all, your W32 is not going to the space station, only out into the warm, sunny Atlantic." So you might want to double check this with him, but it does not seem to be a problem. Werner