Quoted from MnHotRod:
UPDATE: Lloyd said the coil can be mounted either way and provide the same performance. Maybe I just got lucky but my flippers clearly work much better than they did prior to flipping the coils.
Lloyd also pointed out that diodes and wires on the pawl side is better as when they are on the coil stop side, vibration is more likely to break wires and diodes.
LTG : )