Re: zapping and surgical implants? parazapper help!

Well on Dr Clarks website it does caution using Zappers if one has metal implants pace maker in the body but also does state that no research has been done that this is a danger. So be cautious is it worth this?. Weighing up the pros and cons is a good way deciding these things.
Here is that website stating about zapping.

http://www.drclark.net/en/products_devices/devices/zapper.php