Stone chips are part and parcel of the job of owning a zed. Every time I wash the car I spot more but now I don't worry, I just smile and think I enjoyed the ride getting them.
I remember the hoon years ago, following Colin and graham and all I could hear from the front was ping ping ping as the stones bounced off, then I gave up worrying and enjoyed the car and the views.
You can't wrap it in cotton wool so use it I say.