I am specifically referring to miscues. A miscue is essentially the cue tip:cue ball relationship mirroring that of the cue ball

bject ball, correct? I understand the mass of the cue ball is different than the mass of the tip end of the shaft. So let's sub the cue tip with a marble.
If you use a marble as the cue ball, does your contact point of aim change on the object ball? Furthermore, does the direction the marble & ball follow after impact differ than if the marble were a cue ball? Isn't this akin to a miscue? The tip contacts the edge of the cue ball, causing the cue ball to deflect exactly away from contact point. It happens exactly the same way as the object ball deflects away from the cue ball on a cut shot.
Now add chalk. Everything changes. No longer are we testing deflection alone, correct?