As I have said time and time again, the original, single frequency zapper with only paddles is not going to have much effect any anything deep inside of the body. Hulda Clark also said that.
What I used and what customers reported the highest satisfaction with, is multi-frequency zappers combined with paddles and pads in a 4 point contact system, 3 points positive.
There is a significant difference between the two. Sorry if you are not willing to see that.
Again, "Dr. Thiel's study supports ParaZapper's Claim! Multiple frequencies produce better results."