Short lower arms with steel chassis used. The setup will work without changes also with 1.5mm alu chassis and long arms. On thursday and maybe friday the alu chassis will be faster. For high grip steel will be slightly better, for low grip 1.5mm alu will be slightly better. steel creates less steering, compensate that with short arms. Alu 1.5mm use long arms. Don't use the 2.0mm chassis or carbon chassis Use wheel axle shims as ETS uses 0.7mm bodyshells. Weight rear 15g more than front. Camber: begin with 2/2 at any races. Adjust depending on grip Brake 96%, use less if you feel overbraking. Use glued sidewall from the first battery. Otherwise the car will overrotate. Important: I use 1mm bumpsteer for more aggressive steering feel on turn-in later in the race. For most drivers 2 or 3mm will be better. The rest can be copied and should be easy to drive.