Double Zapping?

I've recently been using the Terminator by Don Croft and I still have the $10.00 zapper. I was wondering if anyone's ever tried using them both at the same time. Since the Terminotar can be placed anywhere, I could just put it somewhere - my arm, leg, wherever - and then hold the $10.00 zapper electrodes in my hands. What do you think? Could be that be overdoing it possibly?