I am going to hold off on the Liver Flush right now and get the Terminator II zapper instead. One question I have is and I am going to ask this at the Zapper Forum is, why do they use pennies as contacts, when most are not solid copper? Every penny made since '82 is copper plated zinc. I even read on one site that the copper can react with sweat and eventually etch away. Leaving you with zinc contacts. If I pay $100+ for one of these things, I at least want my 2 cents worth of copper!