@peekay123, Sorry to be a pain and just when you have time. What about this current sensor ACS-758 ? One version can do much lower than Spark Funs model:
Details
Sensor Type: Allegro ACS758 Series Hall Current Sensor.Support Voltage (VCC): 3.0 ~ 5.5VDC.Output Signal (OUT): Analog Output.Ultra-low Power Loss: 100 μΩ Internal Conductor Resistance.Copper Thickness: 4 oz. (see blow slection table for more specs)
Selection Table:
