I bought some pancur from the vets monday, but haven't been able to start the treatment yet, as i'm not sure on the dosage! They said one notch per 2.5 kg, but giz is only 1.5kg. Does this mean he needs half a notch? how easy is it to do that? What will happen if he has more than half a notch? As its obviously not going to be easy to guess how much is half a click!:?