While cleaning my bike following a recent 4500 mile trip I noticed a couple of tiny stone chips on the engine of my '17 Rallye. There's about 10 or so on the metallic grey cam covers but also a couple on the black engine. Obviously any satin black would do the engine buy anyone had to touch-up their own cam covers and found a good colour match ? I've tried a forum search but not had any luck. Cheers.