Oh, Nelly, you're cruel! Those are some gorgeous bits of machining and the lads on here will have raw tongues from scraping them on the floor! I am just glad they don't fit my bike!
Youll probably find the Casoli one is a rizoma or roadracing item re badged anyway...Good thing with the rizoma one is that it comes with longer caps (included in the price) which means you can get away with not buying the stainless springs.