I have seen chipped CCBs before, the manufacturing process is not 100% flawless and these discs are somewhat sensitive to any kind of impact. Tire ships are often the culprit, or rocks hitting the disc hard.
I had and currently have MCCB, I enjoy the stopping power, looks and virtually zero brake dust.
On the other hand, damage is possible and costly.
If I was you, get a good set of used CCBs and mount them, there are specific inspection criteria and it's the cheapest option, other than converting to steel brakes. I bought a full MCCB kit for my last M5 and never installed it, but the rotors were in great condition and I paid 7500€ for all the parts.
You can find deals on eBay, just need to understand the inspection process and you will be ok. If one of my rotors ever gets chipped, I will get a used set and continue to drive. We need to enjoy our beasts!
Good luck with finding the right part, PM me if you have any questions
