Meaning if you have any sort of talent at all then practice will make you fast. Mike and Clay kart shop that churns out champions of Clay and Dunkeswell on a monotonous basis says 'its just bump in seat time that matters'. Just run with what you have and put down some serious laps and time in the seat. In a Kosmic/Tony Kart/ Alonso chassis the sweet spot for setup is quite wide, unlike CRG's and some other chassis which have a much narrower sweet spot in my opinion. Before you start messing about with any setup you need to be a consistent driver.