I'm claiming factor 10 as an arbitary value, which gives 5.7 degree deviation from 90 degree phase. You can choose any different values according to your Q requirements. But that's not the point. Post #35, with the clarification in post #37, claims an A0 effect independent of the frequency ratio, which makes absolutely no sense, I think.
Qactual ~ Qideal(1-2Qideal/Ao)