Depends on the chassis. The OTK always goes to a soft axle for more grip, stiff for less grip. Some chassis require the opposite. There is a large discussion about that topic here: Do different stiffness axles do anything?
Depends on the chassis. The OTK always goes to a soft axle for more grip, stiff for less grip. Some chassis require the opposite. There is a large discussion about that topic here: Do different stiffness axles do anything?