The consult data shouldn't move, this is the ecu tuned idle timing,
because the timing in the ecu can't be adjusted you need to set the engine timing to exactly what the ecu timing shows.
the reason for this is the engine has been tuned from factory with the engine timing at 20 (at idle)
so as the rpm increases and load increases the ecu reads off its factory tuned map.
but if the timing is not set to the factory engine timing then the motor ecu will be running too much or too little timing depending which way the timing is set (advanced or retarded).
-if its retarded then the engine performance will be low
-if its advanced there is a chance the engine may ping or detonate causing engine failure.