I looked at a used Iemca bar loader today that I'm thinking about buying. The model is AS 325. It seems that the height is not adjustable at all. Could this be true? All other bar feeders/loaders I've used have had adjustable bar heights to fit on different lathes. It seems silly to make a bar loader just for one spindle height. Any light you can shed would help me making a decision on this bar loader. Thanks!