Thats strange that u wld say the Scada rsg4 may cause cancer, when 461 clearly states that that zapper cured her cancer. And you did write "sucess brings out the trolls," to one of my posts. Not cool. I will ask you then which parazapper do you have for foot long tapes and hepitica gigantica flukes that are scattered into the muscles? Zappers can be quite costly and to keep trying different ones isnt feasible.