if you're worried about the pits and knicks, those aren't a big deal...you can still run it as is, or you could very carefully and gently smooth them out a touch...just to take down the high sharp edges...but that's it!, don't go trying to smooth out the pits completely.
Or you could have the head's dome re-shaped for a few bucks...which can improve performance, and eliminate any pinging. There's a few guys on here that can and will do that.
