Don't worry about the what the manufacturer says as far as surface deflection in mm or inches. Set ailerons, elevator and rudder to full defection (before the surface begins to bind) when at high rates. Then set low rates at about 15 deg for ailerons and 15 deg for elevator. Use 50% or more expo when on high rates. Use 25% or lower when on low rates. I make the rudder deflection for high and low rate to be the same. I use about 50% expo on rudder. Fly the plane then adjust the rates and expo to soot your personal preference.