Deep cleaning will help a lot. You can really see the difference in shade in different areas. I'd use a good foaming upholstery cleaner like Tuff Stuff with a soft bristle brush or upholstery attachment for a carpet cleaner. Then move on to the 303.
Any small cuts in the fabric will always be there, but on my top like that, they only showed up close, or when there is a fine dew or frost.