Some confusion on this thread as to what MRC is on a Jet.
Max range is aprox 1.32 VMD and you certainly are not at the bottom of the drag (power required) curve.
For any drift down the first priority is not hitting the ground. The best way to achieve that is to fly at the speed which gives you the lowest vertical speed.
Once you are sure the ground is not an issue then you can think about changing strategy to arrive at your new destination either as quickly as possible or with as much remaining fuel as possible.
The speed to achieve either will be decided by your current and future altitude and mass.