hi my name is cris im from greece! i have now a malossi multivar variator on my bike with dr pulley rollers 19 gram on it,the malossi have 20 gram when i buy it! i put dr pulley rollers to engage faster. i want to now if j costa variator is better than malossi multivar???? have anybody try the 2 of them??? i have also malossi belt and dr pulley hit clutch! the bike goes about 190 km/h and 0-100 about 5 sec! if i put j costa i will have better perfomance?????? thanks