So to elaborate, you are brought an epee. You hook up a multimeter and it doesn't go off. You take off the tip and create an A-B short using a flathead screwdriver to connect the two pins and the weapon works. You take off the old contact spring and put a new one on by a half turn. After putting the tip in the meter doesn't show any movement of the needle. So, either the spring is too short or the pins are not level(ie the A line pin is lower than the B line pin). Now, how do you verify that one pin is lower than the other and how do you fix it?