I did my first long (3:00+) cross country after completing flight test. I have about 35 hours total on the airplane and when tying it down, I discovered a piece of my aluminum spinner is missing. There are a few scratches on the cowling intake where it apparently hit while departing. I noticed nothing in flight, no vibration or unusual noise. I have a couple of days before the return flight and I’m looking for opinions about flying it home. My initial inclination is to file/sand it smooth and fly it home so I can replace it. Any other ideas/opinions?