Hi Lori @lorirenee1 I would think the connections would be the same with the stimulator no matter which lead is used. The difference with the leads may be the width and length. I know in a circuit the length and diameter of a wire can cause a different output. The longer the wire the resistance increases. As the diameter increases, the resistance decreases. Not sure if that output will be significant enough for the stimulator. Will be interesting what you find out from your experience. Worth a follow up anyways. Toni