Anyone using a P4452782AE on 340/360?

RRR alluded to a magic formula
here it is
take an engineering drawing or design data and determine the timing points where the opening/closing ramps meet the acceleration ramps
add 4 degrees to each (camshaft degrees not crank degrees)
these are the timing numbers shown in shop manuals
having a lower or taller ramp does not change the timing
having a longer or shorter ramp does not change the timing
how useful?