Hi, Dudley.
In these parts we use never dull on the tough spots, it works great. You can buy it
in auto stores, and Wally world. I also use soft scrub, But it can dull the finish in that area.
If you do, the best way we have found to make the hull shine, is to use a buffer with
a natural sheep fur cover.Just clean the hull, don't use any wax, just the buffer and it will
make her look like new. Good luck
