Some guys trim the Honda foam and put memory foam on top of it. My sandcast seat foam was made of multiple sections taped together. I was surprised the joints didn't show through but it looked good even though it fell apart when I removed the cover.
The Super sport seat doesn't leave a lot of room for modifications that look right and stitched seats soak water if they get wet, never seem to dry out and rust the seat pan. Just my opinions though.