brake setup
I am using the Ofna CNC cut brake disk (pn OFN49009) along with the Ofna metallic brake pads (pn 36659). This combo works well and yields excellent braking power and feel. You can adjust the linkage hardware to improve the linkage travel.
The side mounted throttle servo plastic linkage has some flex, but vertically mounting the throttle/brake servo will allow you to eleminate the flex by using directly connected brake linkage hardware.