all very true,it's very hard to setup someone else's round track cars first off everybody drives different.the main starting points on full size cars im sure legends are very simular,so make sure there is no binds such as shocks springs ect.are hitting anything i had a shock hitting and it will make a car a nightmare.and the rear and front ends have to work together for a balanced setup.then seat time to find out if you like a tight or loose car.and stagger,wheel offs,rear steer,geomentry.hope this helps