Those are hopefully worst case values. If possible try to stay down to 10uF or lower as you could do that with a film capacitor, preventing potential leakage current issues with an electrolytic cap (or use a Tantalum bead). The limiting factor on the series resistor is inaccuracy caused by the input resistance of the DMM, normally 10Meg. I am probably being a bit over cautious there too, a 10k resistor would still only affect the reading by 0.1%, your shunt is almost certainly less accurate than that anyway.