I have adjusted my z axis end stop via the paper test. However when I press to home all the axis the z axis hits the print bed moves it down slightly then goes to the postion I describe. Is this how its supose to be if not what do I need to do?
Yes, this is normal. Your printer is, at first, probably going downward with some speed. When it hits the end-stop it has some momentum and doesn't stop right away. So once it hits the end-stop, it has to physically stop the print head and move upward again slightly to get to the right position.