I know that we have to orient the push rods correctly which is determined by the color of the ball. However, only some of mine show the coloring so I ask, how do I determine which end goes up? Both ends are magnetic, both are same dimensionally, taste the same, etc. Next curiosity is if I make my own pushrods would inconel be beneficial for its strength? If I do use inconel seamless tube, would or should I increase the diameter and wall thickness?