That black thing that people put on the hood of the car is way more important then because stones being flicked from other cars on the road are surely the most worry one can have regarding this problem.
But seriously, did you actually have problems with stones being flicked everywhere or is that some sort of a precaution that someone warned you about because i have never had that problem, at least not to such a degree that it would be noticeable and I am VERY cautious about my car.
Anyway no offense, It is a great car, I just find those mudflaps so incredibly "grandpa" of you
. Many things will go wrong with the car first before stone chips actually become a real problem. Also you could lower it slightly, it would look even better and the inside of the wheel arch would take all of the stones coming off the tires.