Lala
The first happens when you do have sufficient energy available from somewhere and the second occurs when there is not, just pulling more that the engine has doesnt get you to the limit of the blades untill the RRPM has been reduced whereupon the CA will be approximately the same for both cases
But you have said that the amount of coning is related to the amount of G loading - eg 10 degrees for 2 G and higher for more G.
In the power limited example there will be a high angle of coning for minimal G.
You have asserted that you can assess G loading from the coning angle but that can't be true.
The amount of coning in the high G manoeuver will be far less since the RRPM hasn't decayed and you haven't reached the engine limits.