Hi Dominique, Redcloud111,
In RL the Spifire does not have toe brakes. The differential braking is performed as described by redcloud111. I have my toe brakes disabled on my pedals for the Spit, and have the joystick trigger bound to the brakes and another button to apply or release the parking brake in combination with the trigger. However, (redcloud), I have a problem in that even with full rudder right or left the pressure rises quickly on the opposing brake. This is not the case in FI’s X-plane version - brakes/pressure work as intended. Consequently, it looks like it’s not just the Z axis that is not behaving properly and providing the proportionality experienced in XP and DCS.