RE: jet-tronics brake valve ???
I'm a little confused Six?
The instruction indicate how to switch between proportional and on/off mode. You then need to program the end points into the valve (ie: stick neutral and full down elevator, if this is what you are looking to do) The brakes will be proportional anywhere between the two points but at stick neutral, brakes are off. Stick full deflection, brakes full on.
Does this help?