I used to set my servo at 50% for brakes in the past even though 40% was enough. Set it as my failsafe as well.
One day my transmitter failed and the failsafe kicked in. Was taking my sweet time walking to my car when I heard a pop and saw smoke from my car. It was a high end Sanwa servo as well... Now I set my brakes epa to as low as it would allow me to stop my car the way i want it to.
Expensive lesson learnt
Expensive lesson learnt.