Occasionally when I press the button on my fuhattan, I can see or feel little arcs from around the switch. When I press the button down on a table sometimes I can see them between the body of the tube and the switch. What is going on to cause this? I cleaned all of the threaded connections, polished the positive and negative pins, and use dielectric grease on my batteries. Is it inherent to the design somewhere or is there resistance somewhere in the mod I haven't thought to check?