If the energy is applied to the individual the body changes. We do not know how long the person holds the balancing energy (it may be an hour, 3 days, a week. Therefore, go with the 1st reading always in energy balancing. Even though you are using samples; the individual is being tested, not the samples. That is a mystery involving quantum physics. That is why we dose inside the screen where the support items are chosen and not on the testplate. Energy testing has lots of "pros" but unfortunately while being tested energy is changing based on what the body receives as a balancer.