I think you might want to review that thought process.....
Max Range Cruise (MRC) is the top of the Specific Range curve. The bottom of the Drag Curve (Min Drag) is the Maximum Endurance Speed; essentially your best holding speed.
On a typical generic jet aircraft set of curves this is well separated.
So it is incorrect to state that flight at low or CI=0 puts you on the cusp of the drag curve.