i would suggest not doing scales. its just over complicating things. adjust the car to the track, not to the scales. scales just lead to confusion and overall just make setting the car up even harder. even in onroad, which i do alot, the scales are totally in disagreement with the track. id set it up the way i wanted it, drive it, and believe it or not, it would be worse. i suggest starting with a neutral setup and adjust from there..but thats my opinion. just dont want someone to spend (waste) 50-60 bucks on things that dont really work