You may not say if I'm right or not - I didn't say anything in absolutes as you did. I said I'm inclined to believe that there may be better zappers and I would like to try them. Have you done tests on both zappers side by side like PZ has? With something as important as the possibilities of the zapper, I see no reason to question and experiment, rather than settling on the low cost zapper just because it's low cost.