i don't use any offset tires. all i use is zero for my mtx-3 and no problem at all. i always set the car width around 198 to 199 just to be safe from tech. the threaded part of the pillow ball is pretty long. so you may pull it out to make the car wider and it will still be safe and the car will still be a tank (durable). and besides, you won't be legal anyways if you pull it too much as your car will be very wide.